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Data studyBrain and cognition · Version 2026.11

How big is AI compared with a brain? 1,092 models against 11 animals

We put every notable AI model in Epoch AI’s table, 1,092 from 1950 to 2026, on the same scale as the synapses of 11 animals: the largest published model is about the size of a cat’s neocortex and 50 times under a human one.

About this study

Report type
Data study: our dataset of AI model sizes and animal synapse counts
Data
1,092 notable AI models (728 with a parameter count), 1950-2026, and 11 animals with low and high synapse counts
Sources
Epoch AI notable-models table (CC BY 4.0, downloaded 10 November 2026) and 22 papers for the animals; the Epoch AI documentation
Years
Models 1950 to 28 October 2026; as of 10 November 2026
Licence
CC BY 4.0 (our dataset and charts); model data by Epoch AI, CC BY 4.0
Version
2026.11
Sources
24
Short answer

The largest AI model with a published size has about 3 trillion parameters, roughly 50 times fewer than the 150 to 164 trillion synapses counted in a human neocortex. IQ Metrics Research set 728 notable models (Epoch AI, 1950-2026) against 11 animals; a parameter is not a synapse, and size is not ability.

1,092 models3 trillion vs 150 trillion11 animalsCC BY 4.0
3 trillionparameters in the largest AI model with a published size
150-164 trillionsynapses counted in a human neocortex
2025year a notable model first matched a cat neocortex

01 Key findings

  1. The largest model with a published size is cat-sized, not human-sized. 3 trillion parameters against 2.2 to 2.4 trillion synapses in a cat neocortex and 150 to 164 trillion in a human one: a gap of about 1.7 orders of magnitude, 50 to 55 times.Epoch AI; IQ Metrics calculation
  2. AI passed a roundworm in 1975 and a fruit-fly larva in 1980. The first notable model above a mouse neocortex that is a real neural network appeared in 2019; a cat followed in 2025.IQ Metrics calculation
  3. Half of all notable models are at least as big as our low estimate for a honeybee (379 of 728), 128 are bigger than a mouse neocortex, 6 reach a cat, none reach a macaque or a human.IQ Metrics calculation
  4. Growth has stalled since 2021. The largest model doubled every 1.2 years from 2012 to 2026, but 1.6 trillion (2021) became only 3 trillion (2025).Epoch AI; IQ Metrics calculation
  5. Parameters are not synapses. Most trillion-parameter models are sparse: they use 3% to 16% of their parameters at once, and one real cortical neuron needed a five- to eight-layer network to copy.Epoch AI; Beniaguev et al. 2021
  6. The biggest models are the least documented. A size is printed for 41% of the models of 2026, against 92% in 2021.IQ Metrics calculation

02 Statistics to quote

3 trillion

parameters in the largest notable AI model with a published count (Grok 3, 2025; Grok 4 ties); Epoch AI confidence “Likely”.

Epoch AI
50 to 55 times

more synapses in a human neocortex (150 to 164 trillion) than parameters in the largest model, 1.7 orders of magnitude.

IQ Metrics calculation
150-164 trillion

synapses counted in the human neocortex by stereology (Pakkenberg 2003; Tang 2001); nobody has counted the whole brain.

Tang 2001; Pakkenberg 2003
86.1 billion

neurons in the adult male human brain, 19% of them in the cerebral cortex (Azevedo et al. 2009).

Azevedo et al. 2009
1975

first notable AI model with more parameters than a roundworm has synapses: the Cognitron, 21,600 parameters against about 5,000 to 8,000 synapses.

IQ Metrics calculation
2025

year a notable model (Grok 3, 3 trillion) first matched the low estimate for a cat neocortex, 2.2 trillion synapses; only 6 models are at that size.

IQ Metrics calculation
379 of 728

notable models with a parameter count are at or above the low estimate for a honeybee brain (391 million), 52%.

IQ Metrics calculation
128 of 728

notable models are at or above the 81 billion synapses of a mouse neocortex (18%); none is at or above a macaque or a human.

IQ Metrics calculation
1.2 years

doubling time of the largest model per year, 2012 to 2026 (x1.76 a year); from 2021 to 2026 it is 3.4 years.

IQ Metrics calculation
41%

of the notable models of 2026 have a parameter count in Epoch AI’s table, down from 92% in 2021.

IQ Metrics calculation
0 of 23

Anthropic models since 2023 have a parameter count in the table; OpenAI has 6 of 59 and Google DeepMind 13 of 44.

IQ Metrics calculation
20 of 27

models of 1 trillion parameters or more are described as sparse or mixture-of-experts; the 10 biggest of them with a stated active count use 3% to 16% of their parameters per token.

IQ Metrics calculation
81 billion

synapses in the mouse neocortex (7.2 x 10^8 per mm3 times 112 mm3), the same size as a 2019 to 2020 language model.

Schuz and Palm 1989
54.5 million

synapses in the adult fruit fly brain (139,255 neurons); the connectome of another fly counts 312 million postsynaptic sites.

Dorkenwald et al. 2024; Berg et al. 2026

03 How big is AI compared with a human brain?

The largest AI model with a published size has about 3 trillion parameters, roughly 50 to 55 times fewer than the 150 trillion to 164 trillion synapses counted in a human neocortex, and level with a cat’s neocortex (2.2 trillion to 2.4 trillion synapses by our calculation) while just under a macaque’s (3.1 trillion to 6.5 trillion) [1] [15] [14]. This page sets all 1,092 notable models in Epoch AI’s table against the synapse counts of 11 animals, so that a number such as “3 trillion” can be read on the same scale as a brain.

The comparison is about size only. A parameter is one number a model learns; a synapse is a physical contact between two neurons. Nothing here says that any model thinks like a cat, a mouse or a person, and the scale of a brain is not its ability: a crow, a honeybee and a human with half a brain all do more than their synapse counts suggest. Our own dataset joins two sources that are rarely put side by side: Epoch AI’s table of notable models (CC BY 4.0), and synapse counts from primary papers, from electron-microscopy reconstructions of whole fly and worm brains to the stereology of a human cortex. Where papers disagree we keep the range and show it [1].

Figure 1

Every notable AI model against the synapses of eight animals: the biggest models have just reached a cat

Each blue dot is one of 728 notable AI models with a parameter count (Epoch AI, 1950 to 2026): publication date across, size up as a power of ten (6 = a million, 12 = a trillion). Orange dots at the right are animal brains, plotted at the middle of their synapse range; the largest model, 3 trillion, sits level with a cat and just under a macaque, 50 times under a human neocortex. As of 10 November 2026.

AI model (parameters)Sparse or mixture-of-experts model (total parameters)Count of n-grams or features, not network weights

Source: Epoch AI notable models [1]; animal counts: see the table of animals; plotted by IQ Metrics

Data table
model_or_animalyear_publishedlog10_sizegroup
MAI-Base-22026.812.4moe
Mistral Large 42026.812moe
Grok 4.72026.712.3nn
Step 5 Preview2026.711.8nn
DeepSeek V4.1 Flash2026.711.7moe
Tencent Hy4 preview2026.711.9nn
GLM-5.3-Flash2026.611.5moe
GLM-5.32026.611.9moe
Qwen3.8-2.4T-A95B2026.612.4moe
Motif-32026.611.5moe
K-EXAONE 2.02026.611.9moe
A.X K22026.611.8moe
Qwen 3.8 Max2026.512.4moe
Kimi K32026.512.4moe
Inkling2026.512moe
Tencent Hy32026.511.5moe
LongCat-2.02026.512.2moe
Solar Open2 250B2026.511.4moe
Nemotron 3 Ultra2026.411.7moe
MiniMax-M32026.411.6moe
Composer 2.52026.412moe
TML-Interaction-Small2026.411.4moe
DeepSeek-V4-Pro2026.312.2moe
DeepSeek-V4-Flash2026.311.5moe
Tencent Hy3 preview2026.311.5moe
MiMo-V2.5-Pro2026.312moe
Kimi K2.62026.312nn
EXAONE 4.52026.310.5nn
GLM-5.12026.311.9nn
MolmoAct 22026.39.7nn
Composer 22026.212moe
MiMo-V2-Pro2026.212moe
Nemotron 3 Super2026.211.1moe
Qwen3.5-122B-A10B2026.111.1nn
Grok 4.202026.111.7moe
Qwen3.5 397B-A17B2026.111.6nn
GLM-52026.111.9nn
Qwen3-Coder-Next2026.110.9nn
Kimi K2.52026.112nn
Solar Open 100B202611moe
K-EXAONE202611.4nn
VAETKI202611moe
A.X K1202611.7moe
HyperCLOVA X SEED 32B Think202610.5nn
MiniMax-M2.1202611.4moe
GLM-4.7202611.6moe
Nemotron 3-Nano-30B-A3B202610.5nn
DeepSeekMath-V22025.911.8nn
Olmo 32025.910.5nn
π0.6 (pi-0.6)2025.99.7nn
P1-235B-A22B2025.911.4moe
Kaiju Small2025.810.1nn
Kaiju Medium2025.810.5nn
Kaiju Large2025.811nn
Kimi K2 Thinking2025.812moe
Tongyi DeepResearch2025.810.5moe
MiniMax-M22025.811.4nn
Ling-1T2025.812moe
GLM-4.62025.711.6moe
Qwen3-VL-235B-A22B2025.711.4moe
Qwen3-Omni-30B-A3B2025.710.5moe
AgentFounder-30B2025.710.5nn
Qwen3-Max2025.712moe
LongCat-Flash2025.711.7moe
gpt-oss-120b2025.611.1nn
gpt-oss-20b2025.610.3nn
Qwen Image2025.610.4nn
Hierarchical Reasoning Model (HPM)2025.67.4nn
MindLink-72B2025.610.9nn
GLM-4.52025.611.6moe
Qwen3-235B-A22B-Thinking (Jul 2025)2025.611.4moe
Qwen3-235B-A22B (Jul 2025)2025.611.4moe
Qwen3-Coder-480B-A35B2025.611.7moe
EXAONE 4.0 (32B)2025.510.5nn
Kimi K22025.512moe
Grok 42025.512.5nn
EXAONE Path 2.02025.58.2nn
FGN2025.48.9nn
Seed-1.6-Thinking2025.411.4moe
Qwen3 Embedding2025.49.9nn

First 80 of 736 rows; the Data button gives all of them.

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Three reference points show how the page reads. The Perceptron Mark I, built at the Cornell Aeronautical Laboratory in 1957, had about 1,000 adjustable weights [1]; AlexNet, a 2012 image network, had 60 million; BERT-Large (2018) had 340 million; GPT-3 (2020) had 174.6 billion; and Switch Transformer (2021) had 1.57 trillion. On the same scale a roundworm has 5,000 to 8,000 synapses, an adult fruit fly 46 to 312 million, a mouse neocortex 81 billion and a human neocortex 150 to 164 trillion. Our guide to human brain facts gives the other numbers people ask about, and human brain vs dog brain compares neuron counts for two familiar species.

Parameter
One learned number in an AI model, a weight or a bias. Epoch AI records the “number of learnable parameters in the model” [2].
Synapse
A contact where one neuron signals to another. Counting rules differ: some papers count presynaptic sites, some postsynaptic densities, some connections between pairs of neurons.
Neocortex
The folded outer layer of the mammalian brain. We use it for mammals because it is the part for which synapse totals were counted.
Connectome
A complete map of the neurons of a nervous system and the synapses between them, reconstructed from electron-microscope images [3] [9].
Mixture of experts (MoE)
A model built from many sub-networks of which only a few run for each token. Its total parameter count is large; its active count is much smaller [2].
Active parameters
The parameters used to process one token in a sparse model. The Epoch AI column holds the total, with the active number in the note when it is known.
Order of magnitude
A factor of ten. The gap between the largest model and a human neocortex is 1.7 orders of magnitude, a factor of about 50.
Notable model
A model in Epoch AI’s table that is highly cited, expensive to train, widely used, state of the art or historically important [2].

04 Is an AI parameter the same as a brain synapse?

No: a parameter is a single stored number, while a detailed model of one cortical neuron needed a deep network to copy. A 2021 study trained artificial networks to copy a biophysical model of one layer 5 pyramidal neuron and found that a network with five to eight layers was needed to capture its input and output [24]. So counting one synapse as one parameter probably understates the brain; counting a trillion parameters of a sparse model as a trillion working connections probably overstates the model.

Several differences make the match loose. A synapse changes with time and activity; a trained model’s weights are fixed when it is used. A synapse is counted in different ways (a presynaptic site that talks to six cells is one synapse in one paper and six connections in another). Brains also differ from models in what else they carry: neurons, glia, wiring length, energy use, a body and a lifetime of learning. We use parameters and synapses because both are counts of adjustable links, and because they are the only numbers published on both sides. For what AI scores on tests built for people, see the ChatGPT IQ score and why a model’s “120” is not an IQ; our study AI against the maths olympiad tests ability directly.

05 How many neurons and synapses does a human brain have?

A human brain has about 86.1 billion neurons, 19% of them (about 16 billion) in the cerebral cortex, and the neocortex alone holds 150 to 164 trillion synapses; nobody has counted the synapses of the whole brain [18] [15] [14]. The neuron figure comes from the isotropic fractionator, which dissolves brain tissue and counts cell nuclei, applied to four adult men; it replaced the textbook figure of 100 billion, which the authors say was never a count; the synapse figures come from counting synapses in electron-microscope samples of five young men and multiplying by the volume of the neocortex, a measurement with a coefficient of variation of 0.17 between brains [14].

The two human synapse figures, 164 trillion in 2001 and 0.15 quadrillion in 2003, are not two independent checks: the 2003 figure appears in a review of neurostereology studies, and we found no second, independent counting study, so we treat them as one estimate of 150 to 164 trillion. Round figures such as “100 trillion synapses” and “1,000 trillion” appear in textbooks and articles; we found no counting study behind either. The cerebellum, the thalamus and the rest of the brain are not counted at all, so a human brain holds more synapses than the neocortex figure, and every comparison with a mammal on this page is a lower bound for the whole brain. A single cubic millimetre of human temporal cortex, reconstructed in 2024, holds 133.7 million synaptic connections and 57,216 cells [12]; our study of how much of the brain has been mapped shows how little of any brain is reconstructed so far, and how much data the brain can store covers the memory question.

Figure 2

Synapses from a roundworm to a human neocortex: 14 orders of magnitude; one fruit fly has counts 7 times apart, our honeybee bracket 21 times

Low to high published or calculated synapse count for 11 animals, as a power of ten (3 = a thousand, 9 = a billion, 12 = a trillion). Bar = low to high; dot = the headline count where a paper prints one (fruit fly: 54.5 million), otherwise the middle of the range. Mammals are neocortex only. The honeybee, cat and macaque are our calculations, not counts. As of 10 November 2026.

Source: See the table of animals: [3] [4] [5] [6] [7] [8] [9] [10] [13] [15] [14]; powers of ten by IQ Metrics

Data table
labellowestimatehigh
Sea squirt larva: 4,846 to 6,6183.73.83.8
Roundworm: 5,000 to 8,0003.73.83.9
Marine worm larva: 26,881 to 32,3814.44.54.5
Fruit fly larva: 544,0005.75.75.7
Zebrafish larva: 25.25 million7.47.47.4
Fruit fly: 46 million to 312 million7.77.78.5
Honeybee: 391 million to 8.2 billion8.69.39.9
Mouse cortex: 81 billion10.910.910.9
Cat cortex: 2.2 trillion to 2.4 trillion12.312.412.4
Macaque cortex: 3.1 trillion to 6.5 trillion12.512.712.8
Human cortex: 150 trillion to 164 trillion14.214.214.2
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Every animal on the ladder has its own caveat, listed in the table at the end of the page. The roundworm and the fruit-fly larva are counted by electron microscopy, synapse by synapse, and are the most exact rows; the mouse and human rows are densities times volumes; the cat and macaque rows are our calculation from neuron counts and the number of synapses per neuron measured in one cortical area; and the honeybee is a bracket, because we found no paper that prints a synapse count for a honeybee brain.

06 How many synapses do a fruit fly, a honeybee and a mouse have?

An adult fruit fly brain has 54.5 million synapses between 139,255 neurons, a honeybee brain has no published count but about one million neurons, and a mouse neocortex has about 81 billion synapses [9] [21] [13]. The FlyWire consortium reconstructed the fruit fly brain from electron-microscope images and counted 5 x 107 chemical synapses; a separate reconstruction of the whole male fly central nervous system detected 46 million presynaptic sites connected to 312 million postsynaptic densities [10]. Same animal, three counts from 46 million to 312 million, largely because a synapse with several partners can be counted at its source or at each target. We show the whole range.

The honeybee is the row readers ask about most, and the one with the weakest data. Reviews say its brain has “approximately one million neurons” or “less than a million”, and its mushroom bodies hold about 368,000 Kenyon cells, more than 40% of the brain’s neurons [21] [22] [23]. No paper we found prints a total for its synapses, so we bracket it: one million neurons times the 391 synapses per neuron measured in the fly brain gives 391 million, and one million neurons times the 8,200 synapses per neuron of the mouse neocortex gives 8.2 billion. That bracket, 391 million to 8.2 billion, is a calculation by IQ Metrics, not a count. The one billion often quoted for the bee in blog posts sits inside it; we found no counting study behind that figure. See also what bees, ants and flies can do.

Smaller animals are better counted. The roundworm Caenorhabditis elegans has 302 neurons and about 5,000 chemical synapses in the original reconstruction, and about 8,000 in adults in a later one [3] [4]. A sea-squirt tadpole has 177 neurons and 6,618 synapses, 1,772 of them onto muscle [5]; a three-day marine worm larva has 26,881 synapses in its published connectome [6]; a first-instar fruit-fly larva has 3,013 neurons and 544,000 synapses [7]; and a six-day zebrafish larva has 25.25 million synapses detected automatically in a preprint [8]. One cubic millimetre of mouse visual cortex holds 524 million synaptic clefts, more than a language model of 2018 had parameters [11].

07 When did an AI model get as big as a fruit fly, a mouse or a cat?

Notable AI models matched a roundworm’s synapses in 1975, a fruit-fly larva’s in 1980, an adult fruit fly’s between 1995 and 2012 depending on which count and which kind of model is used, a mouse neocortex’s in 2019 to 2020, and a cat neocortex’s in 2025 [1]. The first row of Epoch’s table above each animal’s low synapse count is the earliest date; we also give the first real neural network, and the first year with three or more such models, so that one odd row cannot set the year.

The odd rows are worth naming. The first model above a roundworm is the Cognitron, a Japanese network of 1975 with 21,600 learnable weights; the first above a fruit-fly larva is the Neocognitron of 1980, from NHK’s research laboratories in Japan, with 1.14 million [1]. But the first row above a fruit fly (1995) is a support-vector machine whose 100 million parameters are, in Epoch’s note, the dimension of a polynomial feature space, and the first rows above a honeybee and a mouse (2007) are two Google n-gram tables, SB-LM with 300 billion entries and KN-LM with 21 billion, which count word sequences and are not neural networks. We keep them in the table, mark them, and show the first neural network too: 2009 for a fruit fly, 2012 for a honeybee, and 2019 for a mouse, the recommender DLRM at 100 billion, with GPT-3 at 174.6 billion following in 2020 [1].

Figure 3

The year AI got as big as each animal: a roundworm in 1975, a cat in 2025, nothing bigger yet

For each animal, the first notable AI model whose parameter count is at or above the low end of its synapse range (orange), the first real neural network if an n-gram or feature count came earlier (blue), and the first year with three or more such models (navy). Mouse: the 2007 n-gram table SB-LM comes first, GPT-3-era networks in 2019 and 2020. Macaque and human: no model yet. As of 10 November 2026.

Source: Epoch AI notable models [1]; synapse counts [3] [7] [9] [13] [15]; first-year logic by IQ Metrics (analyse.py)

Data table
animaltypefromtolabeldetail
Sea squirt larvaevent1975-09Cognitron 1975First notable model at or above 4,846 synapses: Cognitron, 1975-09-01 (21,600 parameters)
Sea squirt larvaevent19943+ models in 1994First year with three or more notable models at or above it: 1994
Roundwormevent1975-09Cognitron 1975First notable model at or above 5,000 synapses: Cognitron, 1975-09-01 (21,600 parameters)
Roundwormevent19943+ models in 1994First year with three or more notable models at or above it: 1994
Marine worm larvaevent1980-04Neocognitron 1980First notable model at or above 26,881 synapses: Neocognitron, 1980-04-01 (1.1 million parameters)
Marine worm larvaevent19943+ models in 1994First year with three or more notable models at or above it: 1994
Fruit fly larvaevent1980-04Neocognitron 1980First notable model at or above 544,000 synapses: Neocognitron, 1980-04-01 (1.1 million parameters)
Fruit fly larvaevent20093+ models in 2009First year with three or more notable models at or above it: 2009
Zebrafish larvaevent1995-09Support Vector Machines 1995First notable model at or above 25.25 million synapses: Support Vector Machines, 1995-09-01 (100 million parameters) – not a neural network
Zebrafish larvaevent2009-04RBM Image Classifier 2009First neural network at or above it: RBM Image Classifier, 2009-04-08 (80 million parameters)
Zebrafish larvaevent20123+ models in 2012First year with three or more notable models at or above it: 2012
Fruit flyevent1995-09Support Vector Machines 1995First notable model at or above 46 million synapses: Support Vector Machines, 1995-09-01 (100 million parameters) – not a neural network
Fruit flyevent2009-04RBM Image Classifier 2009First neural network at or above it: RBM Image Classifier, 2009-04-08 (80 million parameters)
Fruit flyevent20123+ models in 2012First year with three or more notable models at or above it: 2012
Honeybeeevent2007-06KN-LM 2007First notable model at or above 391 million synapses: KN-LM, 2007-06-22 (21 billion parameters) – not a neural network
Honeybeeevent2012-07Unsupervised High-level Feature Learner 2012First neural network at or above it: Unsupervised High-level Feature Learner, 2012-07-12 (1 billion parameters)
Honeybeeevent20133+ models in 2013First year with three or more notable models at or above it: 2013
Mouse cortexevent2007-06SB-LM 2007First notable model at or above 81 billion synapses: SB-LM, 2007-06-22 (300 billion parameters) – not a neural network
Mouse cortexevent2019-05DLRM-2020 2019First neural network at or above it: DLRM-2020, 2019-05-31 (100 billion parameters)
Mouse cortexevent20213+ models in 2021First year with three or more notable models at or above it: 2021
Cat cortexevent2025-02Grok 3 2025First notable model at or above 2.2 trillion synapses: Grok 3, 2025-02-17 (3 trillion parameters)
Cat cortexevent20263+ models in 2026First year with three or more notable models at or above it: 2026
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The cat is the newest rung. Grok 3, published in February 2025 with 3 trillion parameters (Epoch confidence “Likely”), is the first notable model at or above the low estimate for a cat neocortex, 2.2 trillion; Grok 4 ties it. 6 models in total reach that size and 4 reach the cat’s high estimate of 2.4 trillion. No model reaches the low estimate for a macaque neocortex (3.1 trillion) – the largest is 4% short – or for a human. Our page on cat IQ covers what is known about how cats think; this page says nothing about it, only that the numbers of the two have the same order of magnitude.

08 How many AI models are bigger than a honeybee or a mouse?

Of the 728 notable models with a parameter count, 379 (52%) are at or above the low estimate for a honeybee, 128 (18%) at or above a mouse neocortex, 6 at or above a cat and none at or above a macaque or a human [1]. Another 364 notable models have no parameter count at all, so these shares are shares of the models that print one; the unprinted models include most recent frontier systems.

Figure 4

From 1,092 models to 128 above a mouse, 6 above a cat and none above a human

All 1,092 notable models in Epoch AI's table, the 728 with a parameter count (the other 364 print none), and how many of those are at or above the synapse count of five animals. The five rungs use the low estimates; no model reaches a macaque (3.1 trillion) or a human. As of 10 November 2026.

Source: Epoch AI notable models table [1]; animal counts [9] [13] [15] and our calculations; counted by IQ Metrics

Data table
stagecountpct_of_firstpct_of_previous
Notable AI models in the Epoch AI table1092100100
With a published or estimated parameter count72866.766.7
At or above the synapses of a fruit fly (54.5 million)51046.770
At or above a honeybee (391 million, low estimate)37934.774.3
At or above a mouse neocortex (81 billion)12811.733.8
At or above a cat neocortex (2.2 trillion, low estimate)60.64.7
At or above a human neocortex (150 trillion, low estimate)000
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The typical notable model is small. The median has 558 million parameters, inside the honeybee range of 391 million to 8.2 billion, and 335 models have a billion parameters or more; 127 have 100 billion or more, and 27 reach a trillion [1]. Apart from two 2007 n-gram tables, models of at least a billion parameters first appear in 2012 (a Google image network with a billion connections) and make up 73% of the notable models of 2020 to 2026 that print a size.

Figure 5

Most notable AI models are small: the middle one has 558 million parameters, inside the honeybee range

How the 728 notable models with a parameter count spread across sizes, in bins of one power of ten (7 = ten million, 11 = a hundred billion). Median 558 million; 335 models have at least a billion parameters and 27 at least a trillion. Dotted lines: the median model, the adult fruit fly and the mouse neocortex. As of 10 November 2026.

Source: Epoch AI notable models [1]; bins by IQ Metrics

Data table
fromtomodels
126
2310
3423
4522
5623
6751
78118
89140
910106
1011102
1112100
121327
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By period, the median model grew from about 4,100 in the 1980s to 55 billion in 2023-2026, but the spread widened: a notable model of 2023 to 2026 can have 57,000 or 3 trillion parameters. Before 2020 only 2 models reached the mouse tier (the 2007 n-gram table and the 2019 recommender DLRM), and from 2023 to 2026 101 of the 244 models with a count did [1].

Figure 6

Size by era: the typical notable model grew from thousands of parameters to tens of billions

One dot per model (728), grouped by publication period; box = middle half, whiskers = smallest and largest, sizes as a power of ten. The median rose from about 4,100 in the 1980s to 55 billion in 2023 to 2026; the dotted line is the mouse neocortex. As of 10 November 2026.

Parameters, as a power of ten. Dotted line: Mouse neocortex.

Source: Epoch AI notable models [1]; grouping by IQ Metrics

Data table
periodnlowq1medianq3high
Before 1980121.21.62.83.34.3
1980s152.52.93.646.1
1990s291.63.44.14.98
2000s241.55.36.67.211.5
2010-201455367.68.110.8
2015-20191614.27.37.78.411
2020-202218868.391012.2
2023-20262444.89.810.711.512.5
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Figure 7

Size tier by period: before 2020, 88% of models sat below a honeybee; since 2023, 101 of 244 sit above a mouse

Number of notable models per size tier (the animal they have reached) and publication period. Tiers are cut at the fruit fly, honeybee, mouse neocortex and cat neocortex. In 2023 to 2026, 101 models are above a mouse and 124 are in the honeybee-to-mouse tier. Each column starts at the animal named: the first holds models below a fruit fly, "fly" is fruit fly to honeybee, "bee" honeybee to mouse, "mouse" mouse to cat and "cat+" cat or more. As of 10 November 2026.

Source: Epoch AI notable models [1]; tiers by IQ Metrics

Data table
periodBelow a fruit flyFruit fly to honeybeeHoneybee to mouseMouse to catCat or more
Before 1980120000
1980s150000
1990s281000
2000s202110
2010-20143216700
2015-201983522510
2020-2022214894250
2023-2026712124956
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Figure 8

Notable models per year by size tier: models above a mouse arrive from 2019, and 2023 was the biggest year

Notable models with a parameter count per publication year, 2012 to 2026, split by which animal they have reached. Counts rise to 91 in 2023 and fall after, partly because fewer labs print a size (see the section on missing sizes). 2026 runs to 28 October. As of 10 November 2026.

Source: Epoch AI notable models [1]; tiers by IQ Metrics

Data table
yearBelow a fruit flyFruit fly to honeybeeHoneybee to mouseMouse to catCat or moretotal
20125229
201345312
2014127221
201514620
2016217230
2017195125
20181313430
2019162118156
202082311143
2021916371173
202249461372
202357671291
202414331856
2025112133258
2026332439
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09 How fast is the largest AI model growing, and when would it match a brain?

The largest model published each year doubled about every 1.2 years from 2012 to 2026, but from 2021 to 2026 it barely moved: 1.57 trillion (Switch, 2021) became 3 trillion (Grok 3, 2025) [1]. A straight line through the 15 yearly maxima rises x1.76 a year (R squared 0.72); using only rows Epoch rates Confident or Likely gives a doubling every 0.98 years. The window matters: 2018 to 2025 gives 0.99 years, 2021 to 2026 gives 3.4 years with an R squared of only 0.27.

Figure 9

The largest model doubled about every 1.2 years from 2012 to 2026, but has barely grown since 2021

The largest notable model with a parameter count in each year, 2012 to 2026 (size as a power of ten), with the straight least-squares line through all 15 points: x1.76 a year, a doubling every 1.23 years (R squared 0.72). With only Confident and Likely rows the doubling is 0.98 years; from 2021 to 2026 alone it is 3.4 years (R squared 0.27). 2026 runs to 28 October. As of 10 November 2026.

Source: Epoch AI notable models [1]; yearly maxima and fit by IQ Metrics

Data table
yearyearlog10_largest_parameters
201220129.2
2013201310.3
2014201410.8
201520158.4
201620169.5
201720179.9
201820189.8
2019201911
2020202011.2
2021202112.2
2022202211.7
2023202312.3
2024202411.8
2025202512.5
2026202612.4
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Arithmetic, not a forecast: if the 2018-to-2025 line (x2.02 a year) simply continued, the largest model would reach 150 trillion parameters around 2030. If the flatter 2021-to-2026 line continued, it would take well over a century. Neither is a prediction. Total parameter counts are not the only way models grow: longer training, more data and better methods raise ability without raising size, and the 2021-2026 stall in size coincides with the spread of sparse models and with labs ceasing to publish counts. Our study of AI and your brain looks at what people do with these systems, and whether AI can pass an IQ test at what they score.

10 Do a trillion parameters mean a trillion working connections?

No: of the 27 models with a trillion parameters or more, 20 are sparse or mixture-of-experts models, and the 10 largest of them whose notes state the active count use only 3% to 16% of their parameters for any one token [1] [2]. Epoch’s column holds the total, and its own guidance says that for a sparse model the compute heuristic should use the active experts. Kimi K3 stores 2.8 trillion parameters and uses 104 billion; MAI-Base-2 stores 2.8 trillion and uses 80 billion; GPT-4, if the rumour Epoch records is right, stores 1.8 trillion and uses 280 billion.

Figure 10

A trillion parameters stored, a few tens of billions used: the 10 biggest sparse models with a stated active count use 3% to 16%

Active parameters per token (orange) against total stored parameters (navy), in billions, for the 10 largest sparse models whose notes state both. The text and chart count the total, as Epoch's column does. GPT-4 is a rumoured figure (Epoch confidence "Likely"). As of 10 November 2026.

Active per tokenTotal stored

Parameters in billions (B)

Source: Epoch AI notable models, notes column [1]; ratios by IQ Metrics

Data table
modelActive per tokenTotal stored
Kimi K31042800
MAI-Base-2802800
Qwen 3.8 Max952400
Llama 4 Behemoth (preview)2882000
GPT-4 (rumoured)2801800
DeepSeek-V4-Pro491600
LongCat-2.0481600
Mistral Large 4491050
MiMo-V2-Pro421020
Inkling41975
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Read this way, the gap to a brain widens: these ten models use 41 to 288 billion parameters at a time, from half a mouse neocortex (81 billion synapses) to a little over three of them, and far under a cat’s 2.2 trillion. The brain has its own sparsity – most synapses are quiet at any moment – and no one knows how to compare the two. We therefore use the total, as the table does, and tell the reader what it hides. A fair version of the comparison would count active connections in both, which neither the models’ papers nor the brain’s counts supply.

11 Which AI companies publish how big their models are?

Epoch AI’s table has a parameter count for 41% of the notable models of 2026, against 92% in 2021, and for none of the 23 Anthropic models since 2023, 6 of 59 OpenAI models and 13 of 44 Google DeepMind models [1]. DeepSeek, which prints all 10 of its models’ sizes, and Alibaba, with 28 of 33, show that publishing a size is possible. Where a lab has not published one, the largest model in the world may be bigger than the 3 trillion on this page, and we cannot say by how much.

One row of the table carries an unconfirmed industry estimate of about 8 trillion parameters in its note while its parameter column is empty; we do not use it, because filling an empty cell with a rumour would turn a missing number into a false one. Even 8 trillion would sit 19 times below a human neocortex. GPT-4 is the best-known case: OpenAI has never published its size, and Epoch lists 1.8 trillion as a rumoured figure with a confidence of “Likely”, describing a mixture-of-experts model that uses about 280 billion parameters at once [1]. ChatGPT is a product built on such models; its size is not published either, and the row Epoch lists for GPT-3.5 Turbo gives 20 billion, taken from a Microsoft paper.

Figure 11

Fewer labs say how big their models are: a size was printed for 92% of notable models in 2021, 41% in 2026

Share of the notable models of each year that have a parameter count in Epoch AI's table, 2012 to 2026 (2026 runs to 28 October). Since 2023, OpenAI has 6 of 59 models with a count, Anthropic 0 of 23, Google DeepMind 13 of 44; DeepSeek 10 of 10 and Alibaba 28 of 33 print theirs. As of 10 November 2026.

Source: Epoch AI notable models [1]; shares by IQ Metrics

Data table
labelvalue
201269
201363
201464
201569
201661
201745
201881
201982
202086
202192
202279
202376
202457
202553
202641
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12 Who builds the biggest AI models?

Industry builds 112 of the 128 models at or above a mouse neocortex, and 60 of the 128 models at that size come from developers wholly in China, against 44 wholly in the United States [1]. This is a count of rows in a table by the country of the developing organisation, not a ranking of countries or of quality, and it depends on which models Epoch AI marks notable.

Figure 12

US and Chinese developers: 354 vs 117 single-country models, but China has more above a mouse

Notable models with a parameter count whose developing organisations are all in the United States (354 models) or all in China (117), by size tier. Above the mouse tier: United States 44, China 60. Models from several countries or other single countries are not shown. A count of models, not a measure of quality. As of 10 November 2026.

Source: Epoch AI notable models, country of the developing organisation [1]; counts by IQ Metrics

Data table
size_tierUnited StatesChina
cat +33
mouse-cat4157
bee-mouse14240
fly-bee7211
< fly966
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Figure 13

Who builds the big ones: industry makes 112 of the 128 models above a mouse

Width = number of notable models with a parameter count (728). Left: the developer's sector in Epoch's table (Industry, Academia, a mix of sectors or other, not stated). Right: the size tier. Industry makes 112 of the 128 models in the two top tiers; academia makes 2. As of 10 November 2026.

Source: Epoch AI notable models [1]; flows by IQ Metrics

Data table
fromtomodels
Industry (395)Below a fruit fly62
Industry (395)Fruit fly to honeybee58
Industry (395)Honeybee to mouse163
Industry (395)Mouse to cat106
Industry (395)Cat or more6
Academia (156)Below a fruit fly97
Academia (156)Fruit fly to honeybee34
Academia (156)Honeybee to mouse23
Academia (156)Mouse to cat2
Mixed or other (160)Below a fruit fly42
Mixed or other (160)Fruit fly to honeybee39
Mixed or other (160)Honeybee to mouse65
Mixed or other (160)Mouse to cat14
Not stated (17)Below a fruit fly17
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Figure 14

Every model above a mouse, one square each: 60 from Chinese developers, 44 from US developers

One square = one of the 128 notable models with at least 81 billion parameters, coloured by the country of the developing organisation in Epoch's table: China 60, United States 44, another single country 18, several countries 6. Of the 60 Chinese models, 45 have open weights and 40 are described as sparse; of the 44 US models, 13 and 18. As of 10 November 2026.

Source: Epoch AI notable models [1]; grouping by IQ Metrics

Data table
modelgrouplabeldetail
Step 5 PreviewChinaStep 5 PreviewStep 5 Preview (2026-09): 600 billion parameters; China
DeepSeek V4.1 FlashChinaDeepSeek V4.1 FlashDeepSeek V4.1 Flash (2026-09): 552 billion parameters; China
Tencent Hy4 previewChinaTencent Hy4 previewTencent Hy4 preview (2026-08): 770 billion parameters; China
GLM-5.3-FlashChinaGLM-5.3-FlashGLM-5.3-Flash (2026-08): 320 billion parameters; China
GLM-5.3ChinaGLM-5.3GLM-5.3 (2026-08): 744 billion parameters; China
Qwen3.8-2.4T-A95BChinaQwen3.8-2.4T-A95BQwen3.8-2.4T-A95B (2026-08): 2.4 trillion parameters; China
Qwen 3.8 MaxChinaQwen 3.8 MaxQwen 3.8 Max (2026-07): 2.4 trillion parameters; China
Kimi K3ChinaKimi K3Kimi K3 (2026-07): 2.8 trillion parameters; China
Tencent Hy3ChinaTencent Hy3Tencent Hy3 (2026-07): 295 billion parameters; China
LongCat-2.0ChinaLongCat-2.0LongCat-2.0 (2026-06): 1.6 trillion parameters; China
MiniMax-M3ChinaMiniMax-M3MiniMax-M3 (2026-06): 428 billion parameters; China
DeepSeek-V4-ProChinaDeepSeek-V4-ProDeepSeek-V4-Pro (2026-04): 1.6 trillion parameters; China
DeepSeek-V4-FlashChinaDeepSeek-V4-FlashDeepSeek-V4-Flash (2026-04): 284 billion parameters; China
Tencent Hy3 previewChinaTencent Hy3 previewTencent Hy3 preview (2026-04): 295 billion parameters; China
MiMo-V2.5-ProChinaMiMo-V2.5-ProMiMo-V2.5-Pro (2026-04): 1 trillion parameters; China
Kimi K2.6ChinaKimi K2.6Kimi K2.6 (2026-04): 1 trillion parameters; China
GLM-5.1ChinaGLM-5.1GLM-5.1 (2026-04): 754 billion parameters; China
MiMo-V2-ProChinaMiMo-V2-ProMiMo-V2-Pro (2026-03): 1 trillion parameters; China
Qwen3.5-122B-A10BChinaQwen3.5-122B-A10BQwen3.5-122B-A10B (2026-02): 122 billion parameters; China
Qwen3.5 397B-A17BChinaQwen3.5 397B-A17BQwen3.5 397B-A17B (2026-02): 397 billion parameters; China
GLM-5ChinaGLM-5GLM-5 (2026-02): 744 billion parameters; China
Kimi K2.5ChinaKimi K2.5Kimi K2.5 (2026-02): 1 trillion parameters; China
MiniMax-M2.1ChinaMiniMax-M2.1MiniMax-M2.1 (2025-12): 229 billion parameters; China
GLM-4.7ChinaGLM-4.7GLM-4.7 (2025-12): 358 billion parameters; China
DeepSeekMath-V2ChinaDeepSeekMath-V2DeepSeekMath-V2 (2025-11): 685 billion parameters; China
P1-235B-A22BChinaP1-235B-A22BP1-235B-A22B (2025-11): 235 billion parameters; China
Kimi K2 ThinkingChinaKimi K2 ThinkingKimi K2 Thinking (2025-11): 1 trillion parameters; China
MiniMax-M2ChinaMiniMax-M2MiniMax-M2 (2025-10): 229 billion parameters; China
Ling-1TChinaLing-1TLing-1T (2025-10): 1 trillion parameters; China
GLM-4.6ChinaGLM-4.6GLM-4.6 (2025-09): 357 billion parameters; China
Qwen3-VL-235B-A22BChinaQwen3-VL-235B-A22BQwen3-VL-235B-A22B (2025-09): 235 billion parameters; China
Qwen3-MaxChinaQwen3-MaxQwen3-Max (2025-09): 1 trillion parameters; China
LongCat-FlashChinaLongCat-FlashLongCat-Flash (2025-09): 560 billion parameters; China
GLM-4.5ChinaGLM-4.5GLM-4.5 (2025-07): 355 billion parameters; China
Qwen3-235B-A22B-Thinking (Jul 2025)ChinaQwen3-235B-A22B-Thinking (Jul 2025)Qwen3-235B-A22B-Thinking (Jul 2025) (2025-07): 235 billion parameters; China
Qwen3-235B-A22B (Jul 2025)ChinaQwen3-235B-A22B (Jul 2025)Qwen3-235B-A22B (Jul 2025) (2025-07): 235 billion parameters; China
Qwen3-Coder-480B-A35BChinaQwen3-Coder-480B-A35BQwen3-Coder-480B-A35B (2025-07): 480 billion parameters; China
Kimi K2ChinaKimi K2Kimi K2 (2025-07): 1 trillion parameters; China
Seed-1.6-ThinkingChinaSeed-1.6-ThinkingSeed-1.6-Thinking (2025-06): 230 billion parameters; China
DeepSeek-R1 (May 2025)ChinaDeepSeek-R1 (May 2025)DeepSeek-R1 (May 2025) (2025-05): 671 billion parameters; China
Qwen3-235B-A22BChinaQwen3-235B-A22BQwen3-235B-A22B (2025-04): 235 billion parameters; China
Pangu UltraChinaPangu UltraPangu Ultra (2025-04): 135 billion parameters; China
DeepSeek-V3 (Mar 2025)ChinaDeepSeek-V3 (Mar 2025)DeepSeek-V3 (Mar 2025) (2025-03): 671 billion parameters; China
ERNIE-4.5-VL-424B-A47B (文心大模型4.5)ChinaERNIE-4.5-VL-424B-A47B (文心大模型4.5)ERNIE-4.5-VL-424B-A47B (文心大模型4.5) (2025-03): 424 billion parameters; China
Hunyuan-TurboSChinaHunyuan-TurboSHunyuan-TurboS (2025-03): 560 billion parameters; China
DeepSeek-R1ChinaDeepSeek-R1DeepSeek-R1 (2025-01): 671 billion parameters; China
DeepSeek-V3ChinaDeepSeek-V3DeepSeek-V3 (2024-12): 671 billion parameters; China
Hunyuan-LargeChinaHunyuan-LargeHunyuan-Large (2024-11): 389 billion parameters; China
Doubao-proChinaDoubao-proDoubao-pro (2024-10): 500 billion parameters; China
Telechat2-115BChinaTelechat2-115BTelechat2-115B (2024-09): 115 billion parameters; China
DeepSeek-V2.5ChinaDeepSeek-V2.5DeepSeek-V2.5 (2024-09): 236 billion parameters; China
DeepSeek-Coder-V2 236BChinaDeepSeek-Coder-V2 236BDeepSeek-Coder-V2 236B (2024-06): 236 billion parameters; China
Yi-LargeChinaYi-LargeYi-Large (2024-05): 100 billion parameters; China
MegaScale (Production)ChinaMegaScale (Production)MegaScale (Production) (2024-02): 530 billion parameters; China
xTrimoPGLM -100BChinaxTrimoPGLM -100BxTrimoPGLM -100B (2023-07): 100 billion parameters; China
PanGu-ΣChinaPanGu-ΣPanGu-Σ (2023-03): 1.1 trillion parameters; China
GLM-130BChinaGLM-130BGLM-130B (2022-08): 130 billion parameters; China
ERNIE 3.0 TitanChinaERNIE 3.0 TitanERNIE 3.0 Titan (2021-12): 260 billion parameters; China
Yuan 1.0ChinaYuan 1.0Yuan 1.0 (2021-10): 246 billion parameters; China
M6-TChinaM6-TM6-T (2021-03): 1 trillion parameters; China
MAI-Base-2United StatesMAI-Base-2MAI-Base-2 (2026-10): 2.8 trillion parameters; United States of America
Grok 4.7United StatesGrok 4.7Grok 4.7 (2026-09): 2.1 trillion parameters; United States of America
InklingUnited StatesInklingInkling (2026-07): 975 billion parameters; United States of America
Nemotron 3 UltraUnited StatesNemotron 3 UltraNemotron 3 Ultra (2026-06): 550 billion parameters; United States of America
Composer 2.5United StatesComposer 2.5Composer 2.5 (2026-05): 1 trillion parameters; United States of America
TML-Interaction-SmallUnited StatesTML-Interaction-SmallTML-Interaction-Small (2026-05): 276 billion parameters; United States of America
Composer 2United StatesComposer 2Composer 2 (2026-03): 1 trillion parameters; United States of America
Nemotron 3 SuperUnited StatesNemotron 3 SuperNemotron 3 Super (2026-03): 120 billion parameters; United States of America
Grok 4.20United StatesGrok 4.20Grok 4.20 (2026-02): 500 billion parameters; United States of America
Kaiju LargeUnited StatesKaiju LargeKaiju Large (2025-11): 110 billion parameters; United States of America
gpt-oss-120bUnited Statesgpt-oss-120bgpt-oss-120b (2025-08): 117 billion parameters; United States of America
Grok 4United StatesGrok 4Grok 4 (2025-07): 3 trillion parameters; United States of America
Llama 4 ScoutUnited StatesLlama 4 ScoutLlama 4 Scout (2025-04): 109 billion parameters; United States of America
Llama 4 MaverickUnited StatesLlama 4 MaverickLlama 4 Maverick (2025-04): 400 billion parameters; United States of America
Llama 4 Behemoth (preview)United StatesLlama 4 Behemoth (preview)Llama 4 Behemoth (preview) (2025-04): 2 trillion parameters; United States of America
Grok 3United StatesGrok 3Grok 3 (2025-02): 3 trillion parameters; United States of America
Palmyra X 004United StatesPalmyra X 004Palmyra X 004 (2024-10): 150 billion parameters; United States of America
Llama 3.1-405BUnited StatesLlama 3.1-405BLlama 3.1-405B (2024-07): 405 billion parameters; United States of America
ESM3 (98B)United StatesESM3 (98B)ESM3 (98B) (2024-06): 98.5 billion parameters; United States of America
Nemotron-4 340BUnited StatesNemotron-4 340BNemotron-4 340B (2024-06): 340 billion parameters; United States of America

First 80 of 128 rows; the Data button gives all of them.

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13 Does a bigger AI model cost more to train?

Yes: in the 478 notable models with both numbers, each tenfold rise in training compute goes with a 3.2-fold rise in parameters (a least-squares slope of 0.50 on log scales, correlation 0.92) [1]. Compute rises faster than size because models are also trained on more data. This is a link between two counts in one table, not a cause, and the compute figures are Epoch AI estimates of varying confidence.

Figure 15

Bigger models cost more to train: each tenfold rise in compute goes with a 3.2-fold rise in size (r = 0.92)

478 notable models with both a parameter count and a training-compute estimate: compute in floating-point operations across, parameters up, both as a power of ten, with a least-squares line (slope 0.50). A link, not a cause: compute also buys more training data. As of 10 November 2026.

Before 20182018 to 20222023 to 2026

Source: Epoch AI notable models, training compute column [1]; line and correlation by IQ Metrics

Data table
modellog10_training_floplog10_parametersgroup
MAI-Base-225.412.4c
Mistral Large 425.112c
DeepSeek V4.1 Flash24.611.7c
GLM-5.3-Flash24.511.5c
Motif-32411.5c
K-EXAONE 2.024.611.9c
A.X K224.311.8c
Kimi K325.312.4c
Inkling2512c
LongCat-2.02512.2c
Solar Open2 250B2411.4c
Nemotron 3 Ultra24.811.7c
Composer 2.525.612c
DeepSeek-V4-Pro2512.2c
DeepSeek-V4-Flash24.411.5c
MiMo-V2.5-Pro24.812c
EXAONE 4.524.610.5c
MolmoAct 2229.7c
Composer 225.412c
GLM-524.811.9c
Kimi K2.524.812c
Solar Open 100B24.111c
K-EXAONE24.211.4c
GLM-4.724.611.6c
Nemotron 3-Nano-30B-A3B23.710.5c
Olmo 32410.5c
Kimi K2 Thinking24.612c
Ling-1T24.812c
GLM-4.624.611.6c
Qwen3-VL-235B-A22B24.711.4c
Qwen3-Omni-30B-A3B22.610.5c
AgentFounder-30B23.810.5c
Qwen3-Max25.212c
LongCat-Flash24.611.7c
gpt-oss-120b24.711.1c
gpt-oss-20b23.710.3c
GLM-4.524.611.6c
Qwen3-235B-A22B-Thinking (Jul 2025)24.711.4c
Qwen3-235B-A22B (Jul 2025)24.711.4c
Qwen3-Coder-480B-A35B24.211.7c
EXAONE 4.0 (32B)24.410.5c
Kimi K224.512c
Grok 426.712.5c
FGN228.9c
DeepSeek-R1 (May 2025)24.511.8c
Qwen3-235B-A22B24.711.4c
Pangu Ultra2511.1c
Llama 4 Scout24.611c
Llama 4 Maverick24.411.6c
Llama 4 Behemoth (preview)25.712.3c
DeepSeek-V3 (Mar 2025)24.511.8c
EXAONE Deep 32B24.110.5c
Hunyuan-TurboS24.711.7c
QwQ-32B24.510.5c
Grok 326.512.5c
Eagle 222.710c
DeepSeek-R124.511.8c
Eurus-2-7B-PRIME20.69.8c
DeepSeek-V324.511.8c
EXAONE 3.5 32B24.110.5c
Llama 3.3 70B24.810.8c
Hunyuan-Large24.511.6c
Doubao-pro25.411.7c
NVLM-X 72B24.510.9c
NVLM-H 72B24.510.9c
NVLM-D 72B24.510.9c
RDT-1B22.69.1c
Movie Gen Video24.210.5c
Llama 3.2 11B23.810c
Telechat2-115B24.811.1c
Qwen2.5-72B24.910.9c
Qwen2.5 Instruct (72B)24.910.9c
Qwen2.5-32B24.510.5c
DeepSeek-V2.524.311.4c
LLaVA-OV-72B24.510.9c
AFM-on-device23.79.4c
Llama 3.1-405B25.611.6c
ESM3 (98B)2411c
DeepSeek-Coder-V2 236B24.111.4c
Nemotron-4 340B25.311.5c

First 80 of 478 rows; the Data button gives all of them.

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14 What does this comparison not show?

It does not show intelligence, ability or thinking: it compares how many adjustable links a model and a brain have, and size is not capacity. A honeybee, with about one million neurons, navigates and learns (see what bees, ants and flies can do), and models of any size can still fail puzzles that people solve on ARC-AGI-3. The link between brain size and human test scores is also weak, about 0.24 in the research on brain size and IQ. Our page on the smartest animals sets neuron counts for 222 species beside behavioural tests for some of them.

It does not forecast anything: the arithmetic line is a reading of a past trend. And it does not rest on exact numbers – three of the eleven animal rows are calculations, the Epoch AI column mixes confident and speculative values, and the animal ranges are 7 times wide for the fruit fly and 21 times for our honeybee bracket. The conclusion that survives every choice is the order of magnitude: the largest published model is about 1.7 orders of magnitude (50 to 55 times) below a human neocortex and about level with a cat.

Brains and machines both get measured.

Our IQ test measures pattern reasoning in people and gives a percentile.

Take the IQ test

15 Every animal and every AI model in our dataset

Table 1

Every animal in our dataset (11 brains and 2 samples)

Synapses = low and high count; "Counted" = a paper prints the number, "IQ Metrics calculation" = neurons times synapses per neuron (see the CSV). Mammals are neocortex only. First model = the first notable AI model at or above the low and the high count. As of 10 November 2026.

Sea squirt larva (Ciona) [5]whole central nervous system, tadpole larva1774,8466,618CountedCognitron (1975)Cognitron (1975)
Roundworm (C. elegans) [3] [4]whole nervous system, hermaphrodite3025,0008,000CountedCognitron (1975)Cognitron (1975)
Marine worm larva (Platynereis, 3 days) [6]whole body, 3-day larva–26,88132,381CountedNeocognitron (1980)Neocognitron (1980)
Fruit fly larva (first instar) [7]whole brain, first-instar larva3,013544,000544,000CountedNeocognitron (1980)Neocognitron (1980)
Zebrafish larva (6 days) [8]whole brain, retina and anterior spinal cord, algorithmic reconstruction–25,250,00025,250,000CountedSupport Vector Machines (1995)Support Vector Machines (1995)
Fruit fly (adult) [9] [10]whole brain (FlyWire, female); male central nervous system (Berg et al.)139,25546,000,000312,000,000CountedSupport Vector Machines (1995)KN-LM (2007)
Honeybee [21] [22] [9] [13]whole brain, estimate (no count published)1,000,000391,370,0008,200,000,000IQ Metrics calculationKN-LM (2007)KN-LM (2007)
Mouse (neocortex) [13]neocortex, both hemispheres10,000,00081,000,000,00081,000,000,000CountedSB-LM (2007)SB-LM (2007)
Cat (neocortex) [19] [16]cerebral cortex, calculated from neurons and synapses per neuron249,830,0002,239,000,000,0002,439,000,000,000IQ Metrics calculationGrok 3 (2025)Grok 3 (2025)
Macaque (neocortex) [20] [17]cerebral cortex, calculated from neurons and synapses per neuron800,960,0003,123,744,000,0006,474,000,000,000IQ Metrics calculationnone yetnone yet
Human (neocortex) [15] [14] [18]neocortex, both hemispheres16,300,000,000150,000,000,000,000164,000,000,000,000Countednone yetnone yet
Mouse, 1 cubic millimetre of visual cortex (MICrONS) [11]1 cubic millimetre of cortex, not a whole brain–524,000,000524,000,000Counted (automatic)not comparednot compared
Human, 1 cubic millimetre of temporal cortex (H01) [12]1 cubic millimetre of cortex, not a whole brain–133,700,000133,700,000Counted (automatic)not comparednot compared

Source: Papers cited in the table; passing years by IQ Metrics

Table 2

The 25 largest notable models with a parameter count

Sorted by total parameters; ties share a size. Active = active parameters per token where the note states it. Confidence is Epoch AI's label for its estimate (Confident, Likely, Speculative, Unknown). Models with no count (for example every Anthropic model) are not ranked. As of 10 November 2026.

1Grok 32025-02-17xAI3 trillion–Likely–
2Grok 42025-07-09xAI3 trillion–Speculativerumoured
3Kimi K32026-07-16Moonshot2.8 trillion104 billionSpeculativesparse (MoE), rumoured
4MAI-Base-22026-10-15Microsoft2.8 trillion80 billionConfidentsparse (MoE)
5Qwen 3.8 Max2026-07-19Alibaba2.4 trillion95 billionConfidentsparse (MoE)
6Qwen3.8-2.4T-A95B2026-08-08Alibaba2.4 trillion95 billionConfidentsparse (MoE)
7Grok 4.72026-09-21xAI2.1 trillion–Likelyrumoured
8Llama 4 Behemoth (preview)2025-04-05Meta AI2 trillion288 billionLikelysparse (MoE)
9GPT-4 (Mar 2023)2023-03-15OpenAI1.8 trillion280 billionLikelysparse (MoE), rumoured
10GPT-4 (Jun 2023)2023-06-13OpenAI1.8 trillion280 billionLikelysparse (MoE), rumoured
11DeepSeek-V4-Pro2026-04-24DeepSeek1.6 trillion49 billionLikelysparse (MoE)
12LongCat-2.02026-06-29Meituan Inc1.6 trillion48 billionLikelysparse (MoE)
13Switch2021-01-11Google1.6 trillion–Confident–
14GLaM2021-12-13Google1.2 trillion–Confident–
15PanGu-Σ2023-03-20Huawei Noah’s Ark Lab1.1 trillion–Confidentsparse (MoE)
16Mistral Large 42026-10-06Mistral AI1.05 trillion49 billionConfidentsparse (MoE)
17Kimi K2.52026-02-02Moonshot1 trillion–Likely–
18Composer 22026-03-19Cursor1 trillion32 billionConfidentsparse (MoE)
19Kimi K2.62026-04-20Moonshot1 trillion–Confident–
20Composer 2.52026-05-18Cursor1 trillion32 billionLikelysparse (MoE)
21MiMo-V2-Pro2026-03-18Xiaomi Corp1 trillion42 billionConfidentsparse (MoE)
22MiMo-V2.5-Pro2026-04-23Xiaomi Corp1 trillion42 billionLikelysparse (MoE)
23M6-T2021-03-05Alibaba1 trillion–Likelysparse (MoE)
24Kimi K22025-07-11Moonshot1 trillion–Confidentsparse (MoE)
25Qwen3-Max2025-09-05Alibaba1 trillion–Speculativesparse (MoE), rumoured

Source: Epoch AI notable models [1]

Table 3

Every notable AI model with a parameter count (728 rows)

Largest first; click a header to sort. Parameters as Epoch AI records them (total for sparse models). Tier = the animal the model has reached: < fly, fly-bee, bee-mouse, mouse-cat, cat +. The other 364 notable models have no count and are in the CSV with an empty size. As of 10 November 2026.

Grok 32025-02-17xAIUnited States3,000,000,000,000cat +Likely–
Grok 42025-07-09xAIUnited States3,000,000,000,000cat +Speculativeunconfirmed
Kimi K32026-07-16MoonshotChina2,800,000,000,000cat +Speculativesparse (MoE), unconfirmed
MAI-Base-22026-10-15MicrosoftUnited States2,800,000,000,000cat +Confidentsparse (MoE)
Qwen 3.8 Max2026-07-19AlibabaChina2,400,000,000,000cat +Confidentsparse (MoE)
Qwen3.8-2.4T-A95B2026-08-08AlibabaChina2,400,000,000,000cat +Confidentsparse (MoE)
Grok 4.72026-09-21xAIUnited States2,100,000,000,000mouse-catLikelyunconfirmed
Llama 4 Behemoth (preview)2025-04-05Meta AIUnited States2,000,000,000,000mouse-catLikelysparse (MoE)
GPT-4 (Mar 2023)2023-03-15OpenAIUnited States1,800,000,000,000mouse-catLikelysparse (MoE), unconfirmed
GPT-4 (Jun 2023)2023-06-13OpenAIUnited States1,800,000,000,000mouse-catLikelysparse (MoE), unconfirmed
DeepSeek-V4-Pro2026-04-24DeepSeekChina1,600,000,000,000mouse-catLikelysparse (MoE)
LongCat-2.02026-06-29Meituan IncChina1,600,000,000,000mouse-catLikelysparse (MoE)
Switch2021-01-11GoogleUnited States1,571,000,000,000mouse-catConfident–
GLaM2021-12-13GoogleUnited States1,200,000,000,000mouse-catConfident–
PanGu-Σ2023-03-20Huawei Noah’s Ark LabChina1,085,000,000,000mouse-catConfidentsparse (MoE)
Mistral Large 42026-10-06Mistral AIFrance1,050,000,000,000mouse-catConfidentsparse (MoE)
Kimi K2.52026-02-02MoonshotChina1,040,000,000,000mouse-catLikely–
Composer 22026-03-19CursorUnited States1,040,000,000,000mouse-catConfidentsparse (MoE)
Kimi K2.62026-04-20MoonshotChina1,040,000,000,000mouse-catConfident–
Composer 2.52026-05-18CursorUnited States1,040,000,000,000mouse-catLikelysparse (MoE)
MiMo-V2-Pro2026-03-18Xiaomi CorpChina1,020,000,000,000mouse-catConfidentsparse (MoE)
MiMo-V2.5-Pro2026-04-23Xiaomi CorpChina1,020,000,000,000mouse-catLikelysparse (MoE)
M6-T2021-03-05AlibabaChina1,002,700,000,000mouse-catLikelysparse (MoE)
Kimi K22025-07-11MoonshotChina1,000,000,000,000mouse-catConfidentsparse (MoE)
Qwen3-Max2025-09-05AlibabaChina1,000,000,000,000mouse-catSpeculativesparse (MoE), unconfirmed
Ling-1T2025-10-10Ant GroupChina1,000,000,000,000mouse-catConfidentsparse (MoE)
Kimi K2 Thinking2025-11-06MoonshotChina1,000,000,000,000mouse-catLikelysparse (MoE)
Inkling2026-07-15Thinking MachinesUnited States975,000,000,000mouse-catLikelysparse (MoE)
Tencent Hy4 preview2026-08-28TencentChina770,000,000,000mouse-catLikely–
GLM-5.12026-04-07Z.ai (Zhipu AI)China754,000,000,000mouse-catConfident–
K-EXAONE 2.02026-07-31LG AI ResearchSouth Korea750,000,000,000mouse-catConfidentsparse (MoE)
GLM-52026-02-12Z.ai (Zhipu AI)China744,000,000,000mouse-catLikely–
GLM-5.32026-08-14Z.ai (Zhipu AI)China744,000,000,000mouse-catConfidentsparse (MoE)
A.X K22026-07-29SK TelecomSouth Korea688,000,000,000mouse-catConfidentsparse (MoE)
DeepSeekMath-V22025-11-27DeepSeekChina685,000,000,000mouse-catConfident–
DeepSeek-V32024-12-24DeepSeekChina671,000,000,000mouse-catConfidentsparse (MoE)
DeepSeek-R12025-01-20DeepSeekChina671,000,000,000mouse-catConfidentsparse (MoE)
DeepSeek-V3 (Mar 2025)2025-03-24DeepSeekChina671,000,000,000mouse-catConfidentsparse (MoE)
DeepSeek-R1 (May 2025)2025-05-28DeepSeekChina671,000,000,000mouse-catConfidentsparse (MoE)
SenseChat 5.52024-07-06SenseTimeHong Kong600,000,000,000mouse-catConfident–
Step 5 Preview2026-09-18StepFunChina600,000,000,000mouse-catLikely–
PaLM-E2023-03-06Google,TU BerlinGermany; United States562,000,000,000mouse-catLikely–
Hunyuan-TurboS2025-03-11TencentChina560,000,000,000mouse-catConfidentsparse (MoE)
LongCat-Flash2025-09-01Meituan IncChina560,000,000,000mouse-catLikelysparse (MoE)
DeepSeek V4.1 Flash2026-09-09DeepSeekChina552,000,000,000mouse-catLikelysparse (MoE)
Nemotron 3 Ultra2026-06-04NvidiaUnited States550,000,000,000mouse-catLikelysparse (MoE)
PaLM (540B)2022-04-04Google ResearchUnited States540,350,000,000mouse-catConfidentsparse (MoE)
Minerva (540B)2022-06-29GoogleUnited States540,350,000,000mouse-catConfidentsparse (MoE)
U-PaLM (540B)2022-10-20GoogleUnited States540,000,000,000mouse-catConfident–
LMSI-Palm2022-10-20Google,University of Illinois Urbana-Champaign (UIUnited States540,000,000,000mouse-catConfident–
Flan-PaLM 540B2022-10-20GoogleUnited States540,000,000,000mouse-catConfident–
Megatron-Turing NLG 530B2021-10-11Microsoft,NvidiaUnited States530,000,000,000mouse-catConfident–
MegaScale (Production)2024-02-23ByteDance,Peking UniversityChina530,000,000,000mouse-catSpeculativeunconfirmed
A.X K12025-12-30SK TelecomSouth Korea519,000,000,000mouse-catConfidentsparse (MoE)
Doubao-pro2024-10-28ByteDanceChina500,000,000,000mouse-catLikely–
Grok 4.202026-02-17xAIUnited States500,000,000,000mouse-catLikelysparse (MoE)
Qwen3-Coder-480B-A35B2025-07-22AlibabaChina480,000,000,000mouse-catConfidentsparse (MoE)
MiniMax-M32026-06-01MiniMaxChina428,000,000,000mouse-catConfidentsparse (MoE)
ERNIE-4.5-VL-424B-A47B (文心大模型4.5)2025-03-16BaiduChina424,000,000,000mouse-catConfidentsparse (MoE)
Llama 3.1-405B2024-07-23Meta AIUnited States405,000,000,000mouse-catConfident–
Llama 4 Maverick2025-04-05Meta AIUnited States400,000,000,000mouse-catLikelysparse (MoE)
Jamba 1.5-Large2024-08-22AI21 LabsIsrael398,000,000,000mouse-catConfidentsparse (MoE)
Qwen3.5 397B-A17B2026-02-15AlibabaChina397,000,000,000mouse-catLikely–
Hunyuan-Large2024-11-06TencentChina389,000,000,000mouse-catConfident–
GLM-4.72025-12-22Z.ai (Zhipu AI)China358,000,000,000mouse-catLikelysparse (MoE)
GLM-4.62025-09-30Z.ai (Zhipu AI),Tsinghua UniversityChina357,000,000,000mouse-catLikelysparse (MoE)
GLM-4.52025-07-28Z.ai (Zhipu AI),Tsinghua UniversityChina355,000,000,000mouse-catConfidentsparse (MoE)
PaLM 22023-05-10GoogleUnited States340,000,000,000mouse-catLikely–
Med-PaLM 22023-05-16Google Research,DeepMindUnited Kingdom; United States340,000,000,000mouse-catLikely–
Nemotron-4 340B2024-06-14NvidiaUnited States340,000,000,000mouse-catConfident–
GLM-5.3-Flash2026-08-20Z.ai (Zhipu AI)China320,000,000,000mouse-catLikelysparse (MoE)
Grok-12023-11-04xAIUnited States314,000,000,000mouse-catLikelysparse (MoE)
Motif-32026-08-07Motif TechnologiesSouth Korea314,000,000,000mouse-catConfidentsparse (MoE)
SB-LM2007-06-22GoogleUnited States300,000,000,000mouse-catLikelynot a neural network
Tencent Hy3 preview2026-04-23TencentChina295,000,000,000mouse-catConfidentsparse (MoE)
Tencent Hy32026-07-06TencentChina295,000,000,000mouse-catConfidentsparse (MoE)
DeepSeek-V4-Flash2026-04-24DeepSeekChina284,000,000,000mouse-catLikelysparse (MoE)
Gopher (280B)2021-12-08DeepMindUnited Kingdom280,000,000,000mouse-catConfident–
TML-Interaction-Small2026-05-11Thinking MachinesUnited States276,000,000,000mouse-catConfidentsparse (MoE)
ST-MoE2022-02-17Google,Google Brain,Google ResearchUnited States269,000,000,000mouse-catLikelysparse (MoE)
ERNIE 3.0 Titan2021-12-23Baidu,Peng Cheng LaboratoryChina260,000,000,000mouse-catConfident–
Solar Open2 250B2026-06-28UpstageSouth Korea250,300,000,000mouse-catLikelysparse (MoE)
Aramco Metabrain AI2024-03-04Saudi AramcoSaudi Arabia250,000,000,000mouse-catLikely–
Yuan 1.02021-10-12InspurChina245,730,000,000mouse-catConfident–
DeepSeek-Coder-V2 236B2024-06-17DeepSeekChina236,000,000,000mouse-catConfidentsparse (MoE)
DeepSeek-V2.52024-09-06DeepSeekChina236,000,000,000mouse-catConfidentsparse (MoE)
K-EXAONE2025-12-31LG AI ResearchSouth Korea236,000,000,000mouse-catConfident–
Qwen3-235B-A22B2025-04-29AlibabaChina235,000,000,000mouse-catLikelysparse (MoE)
Qwen3-235B-A22B-Thinking (Jul 2025)2025-07-25AlibabaChina235,000,000,000mouse-catLikelysparse (MoE)
Qwen3-235B-A22B (Jul 2025)2025-07-25AlibabaChina235,000,000,000mouse-catLikelysparse (MoE)
Qwen3-VL-235B-A22B2025-09-23AlibabaChina235,000,000,000mouse-catLikelysparse (MoE)
P1-235B-A22B2025-11-17Shanghai AI LabChina235,000,000,000mouse-catLikelysparse (MoE)
Seed-1.6-Thinking2025-06-11ByteDanceChina230,000,000,000mouse-catConfidentsparse (MoE)
MiniMax-M22025-10-27MiniMaxChina229,000,000,000mouse-catConfident–
MiniMax-M2.12025-12-23MiniMaxChina229,000,000,000mouse-catConfidentsparse (MoE)
HyperCLOVA 204B2021-09-10NAVERSouth Korea204,000,000,000mouse-catSpeculativeunconfirmed
Amazon Titan2023-09-28AmazonUnited States200,000,000,000mouse-catLikely–
Falcon-180B2023-09-06Technology Innovation InstituteUnited Arab Emirates180,000,000,000mouse-catConfident–
Jurassic-1-Jumbo2021-08-11AI21 LabsIsrael178,000,000,000mouse-catConfident–
BLOOM-176B2022-07-11Hugging Face,BigScienceFrance; United States176,247,271,424mouse-catConfident–
BLUUMI2023-11-03University of Turku,Hugging FaceFinland; United States176,000,000,000mouse-catLikely–
InstructGPT 175B2022-01-27OpenAIUnited States175,000,000,000mouse-catConfident–
OPT-175B2022-05-02Meta AIUnited States175,000,000,000mouse-catConfident–
BlenderBot 32022-08-10McGill University,Meta AI,Mila – Quebec AI (originCanada; United States175,000,000,000mouse-catLikely–
GPT-3 175B (davinci)2020-05-28OpenAIUnited States174,600,000,000mouse-catConfident–
Palmyra X 0042024-10-09WriterUnited States150,000,000,000mouse-cat––
FLAN 137B2021-09-03Google ResearchUnited States137,000,000,000mouse-catConfident–
LaMDA2022-02-10GoogleUnited States137,000,000,000mouse-catConfident–
MEB2021-09-04MicrosoftUnited States135,000,000,000mouse-catConfident–
Pangu Ultra2025-04-10HuaweiChina135,000,000,000mouse-catConfident–
DBRX2024-03-27DatabricksUnited States132,000,000,000mouse-catConfidentsparse (MoE)
GLM-130B2022-08-04Tsinghua UniversityChina130,000,000,000mouse-catConfident–
Pixtral Large2024-11-18Mistral AIFrance124,000,000,000mouse-catConfident–
Mistral Large 22024-07-24Mistral AIFrance123,000,000,000mouse-catLikely–
Qwen3.5-122B-A10B2026-02-24AlibabaChina122,000,000,000mouse-catLikely–
Galactica2022-11-16Meta AIUnited States120,000,000,000mouse-catLikely–
Nemotron 3 Super2026-03-11NvidiaUnited States120,000,000,000mouse-catLikelysparse (MoE)
gpt-oss-120b2025-08-05OpenAIUnited States116,830,000,000mouse-catConfident–
Telechat2-115B2024-09-20China TelecomChina115,000,000,000mouse-catConfident–
Kaiju Large2025-11-07Character.aiUnited States110,000,000,000mouse-catLikely–
Llama 4 Scout2025-04-05Meta AIUnited States109,000,000,000mouse-catLikelysparse (MoE)
InternLM2023-07-06Shanghai AI Lab,SenseTimeChina; Hong Kong104,000,000,000mouse-catConfident–
Solar Open 100B2025-12-31UpstageSouth Korea102,000,000,000mouse-catConfidentsparse (MoE)
DLRM-20202019-05-31Facebook AIUnited States100,000,000,000mouse-catConfident–
xTrimoPGLM -100B2023-07-06Tsinghua University,BioMap ResearchChina100,000,000,000mouse-catConfident–
Yi-Large2024-05-1301.AIChina100,000,000,000mouse-catSpeculativeunconfirmed
VAETKI2025-12-30NC AISouth Korea100,000,000,000mouse-catConfidentsparse (MoE)
ESM3 (98B)2024-06-25EvolutionaryScale,University of California (UC) BeUnited States98,500,000,000mouse-catConfident–
Flamingo2022-04-29DeepMindUnited Kingdom80,000,000,000bee-mouseConfident–
Qwen3-Coder-Next2026-02-02AlibabaChina80,000,000,000bee-mouseLikely–
Qwen2-72B2024-06-07AlibabaChina72,710,000,000bee-mouseConfident–
Qwen2.5-72B2024-09-19AlibabaChina72,700,000,000bee-mouseConfident–
Qwen2.5 Instruct (72B)2024-09-19AlibabaChina72,700,000,000bee-mouseConfident–
Qwen-72B2023-11-30AlibabaChina72,000,000,000bee-mouseConfident–
Palmyra X 0032024-01-01WriterUnited States72,000,000,000bee-mouse––
Qwen1.5-72B2024-02-04AlibabaChina72,000,000,000bee-mouseConfident–
LLaVA-OV-72B2024-08-06ByteDance,Nanyang Technological University,ChineseChina; Hong Kong; Singapore72,000,000,000bee-mouseConfident–
NVLM-X 72B2024-10-22NvidiaUnited States72,000,000,000bee-mouseLikely–
NVLM-H 72B2024-10-22NvidiaUnited States72,000,000,000bee-mouseLikely–
NVLM-D 72B2024-10-22NvidiaUnited States72,000,000,000bee-mouseConfident–
MindLink-72B2025-08-01Kunlun Inc.China72,000,000,000bee-mouseConfident–
Chinchilla2022-03-29DeepMindUnited Kingdom70,000,000,000bee-mouseConfident–
Llama 2-70B2023-07-18Meta AIUnited States70,000,000,000bee-mouseConfident–
PPLX-70B-Online2023-11-29PerplexityUnited States70,000,000,000bee-mouseLikely–
Llama 3-70B2024-04-18Meta AIUnited States70,000,000,000bee-mouseConfident–
ALLaM adapted 70B2024-05-21Saudi Data and Artificial Intelligence AuthoritySaudi Arabia70,000,000,000bee-mouseConfident–
Llama 3.3 70B2024-12-06Meta AIUnited States70,000,000,000bee-mouseConfident–
Reka Core2024-04-15Reka AIUnited States67,000,000,000bee-mouseSpeculativeunconfirmed
LLaMA-65B2023-02-24Meta AIUnited States65,200,000,000bee-mouseConfident–
SNM-skip2014-12-03GoogleUnited States62,000,000,000bee-mouseSpeculativeunconfirmed
PaLI-X2023-05-29Google ResearchUnited States55,000,000,000bee-mouseLikely–
RT-22023-07-28Google DeepMindUnited States55,000,000,000bee-mouseConfident–
RT-2-X2023-10-13Google DeepMindUnited States55,000,000,000bee-mouseConfident–
NLLB2022-07-06Meta AIUnited States54,500,000,000bee-mouseConfident–
BloombergGPT2023-03-30Bloomberg,Johns Hopkins UniversityUnited States50,558,868,480bee-mouseConfident–
M4-50B2019-10-11GoogleUnited States50,000,000,000bee-mouseConfidentsparse (MoE)
Mixtral 8x7B2023-12-11Mistral AIFrance46,700,000,000bee-mouseSpeculativesparse (MoE), unconfirmed
AlphaCode2022-02-02DeepMindUnited Kingdom41,100,000,000bee-mouseConfident–
Falcon-40B2023-03-15Technology Innovation InstituteUnited Arab Emirates40,000,000,000bee-mouseConfident–
Qwen3-Omni-30B-A3B2025-09-22AlibabaChina35,300,000,000bee-mouseConfidentsparse (MoE)
Yi-34B2023-11-0201.AIChina34,000,000,000bee-mouseConfident–
Cambrian-1-34B2024-06-24New York University (NYU)United States34,000,000,000bee-mouseConfident–
Oryx 34B2024-09-19Tsinghua University,Tencent,Nanyang Technological China; Singapore34,000,000,000bee-mouseConfident–
Kaiju Medium2025-11-07Character.aiUnited States34,000,000,000bee-mouseLikely–
EXAONE 4.52026-04-09LG AI ResearchSouth Korea33,200,000,000bee-mouseConfident–
Qwen2.5-32B2024-09-17AlibabaChina32,500,000,000bee-mouseConfident–
QwQ-32B2025-03-06AlibabaChina32,500,000,000bee-mouseSpeculativeunconfirmed
EXAONE 3.5 32B2024-12-09LG AI ResearchSouth Korea32,000,000,000bee-mouseConfident–
EXAONE Deep 32B2025-03-16LG AI ResearchSouth Korea32,000,000,000bee-mouseConfident–
EXAONE 4.0 (32B)2025-07-15LG AI ResearchSouth Korea32,000,000,000bee-mouseConfident–
Olmo 32025-11-20Allen Institute for AIUnited States32,000,000,000bee-mouseConfident–
HyperCLOVA X SEED 32B Think2025-12-29NAVERSouth Korea32,000,000,000bee-mouseConfident–
Nemotron 3-Nano-30B-A3B2025-12-15NvidiaUnited States31,600,000,000bee-mouseLikely–
Tongyi DeepResearch2025-10-28AlibabaChina30,500,000,000bee-mouseConfidentsparse (MoE)
MM1-30B2024-03-14AppleUnited States30,000,000,000bee-mouseLikely–
Movie Gen Video2024-10-04Meta AIUnited States30,000,000,000bee-mouseConfident–
AgentFounder-30B2025-09-16AlibabaChina30,000,000,000bee-mouseConfident–
PLUG2021-04-19AlibabaChina27,000,000,000bee-mouseConfident–
Qwen Image2025-08-04AlibabaChina27,000,000,000bee-mouseConfident–
GenSLM2022-10-11University of Chicago,Nvidia,Harvard University,CeGermany; United States25,000,000,000bee-mouseConfident–
ViT-22B2023-02-10GoogleUnited States21,743,000,000bee-mouseConfident–
KN-LM2007-06-22GoogleUnited States21,000,000,000bee-mouseLikelynot a neural network
gpt-oss-20b2025-08-05OpenAIUnited States20,910,000,000bee-mouseConfident–
RNN for 1B words2013-12-11GoogleUnited States20,000,000,000bee-mouseSpeculativeunconfirmed
GPT-NeoX-20B2022-02-09EleutherAIUnited States20,000,000,000bee-mouseConfident–
UL22022-05-10Google Research,Google BrainUnited States20,000,000,000bee-mouseConfident–
Parti2022-06-22Google ResearchUnited States20,000,000,000bee-mouseConfident–
GPT-3.5 Turbo2023-06-13OpenAIUnited States20,000,000,000bee-mouseLikely–
GPT-3.5 Turbo Instruct2023-09-28OpenAIUnited States20,000,000,000bee-mouseLikely–
SPHINX (Llama 2 13B)2023-11-13Shanghai AI Lab,Chinese University of Hong Kong (CChina; Hong Kong19,900,000,000bee-mouseLikely–
AlexaTM 20B2022-08-02AmazonUnited States19,750,000,000bee-mouseConfident–
CogAgent2023-12-14Tsinghua University,Z.ai (Zhipu AI)China18,000,000,000bee-mouseLikely–
Turing-NLG2020-02-13MicrosoftUnited States17,000,000,000bee-mouseLikely–
CogVLM-17B2023-11-06Tsinghua University,Z.ai (Zhipu AI),Beihang UniverChina17,000,000,000bee-mouseConfident–
PaLI2022-09-14GoogleUnited States16,900,000,000bee-mouseLikely–
CodeT5+2023-05-20SalesforceUnited States16,000,000,000bee-mouseConfident–
StarCoder2023-05-09Hugging Face,ServiceNow,Northeastern University,MiAustralia; Canada; Germany; India; Israe15,500,000,000bee-mouseConfident–
ESM2-15B2022-07-21Meta AI,New York University (NYU),Stanford UniversUnited States15,000,000,000bee-mouseConfident–
FunSearch2023-12-14Google DeepMindUnited States15,000,000,000bee-mouseSpeculativeunconfirmed
NVILA 15B2024-12-05Nvidia,Massachusetts Institute of Technology (MIT)China; United States15,000,000,000bee-mouseConfident–
nekomata-14b2023-12-21rinnaJapan14,200,000,000bee-mouseConfident–
VILA1.5-13B2024-05-03Nvidia,Massachusetts Institute of Technology (MIT)United States13,493,916,736bee-mouseConfident–
VILA-13B2023-12-12Nvidia,Massachusetts Institute of Technology (MIT)United States13,350,839,296bee-mouseConfident–
mT5-XXL2020-10-20Google,Google ResearchUnited States13,000,000,000bee-mouseConfident–
mT0-13B2022-11-03Hugging Face,BigScienceFrance; United States13,000,000,000bee-mouseConfident–
LLaVA2023-04-17University of Wisconsin Madison,Microsoft ResearchUnited States13,000,000,000bee-mouseConfident–
InstructBLIP2023-05-11Salesforce Research,Hong Kong University of SciencHong Kong; Singapore; United States13,000,000,000bee-mouseConfident–
Jais2023-08-29Cerebras Systems,Mohamed bin Zayed University of AUnited Arab Emirates; United States13,000,000,000bee-mouseConfident–
FinGPT-13B2023-10-07University of California Los Angeles (UCLA),ColumbUnited States13,000,000,000bee-mouseLikely–
Ferret (13B)2023-10-11Columbia University,AppleUnited States13,000,000,000bee-mouseConfident–
Skywork-13B2023-10-30Kunlun Inc.China13,000,000,000bee-mouseConfident–
LLaVA 1.52023-11-05University of Wisconsin Madison,Microsoft ResearchUnited States13,000,000,000bee-mouseConfident–
Volcano 13B2023-11-13Korea University,Korea Advanced Institute of ScienSouth Korea13,000,000,000bee-mouseLikely–
Aya2024-02-12Cohere Labs (formerly Cohere for AI),Brown UniversCanada; United States13,000,000,000bee-mouseSpeculativeunconfirmed
Kaiju Small2025-11-07Character.aiUnited States13,000,000,000bee-mouseLikely–
ByT5-XXL2021-05-28Google,Google ResearchUnited States12,900,000,000bee-mouseLikely–
CoRe2023-12-29Tsinghua UniversityChina12,400,000,000bee-mouseSpeculativeunconfirmed
DALL-E2021-01-05OpenAIUnited States12,000,000,000bee-mouseLikely–
Codex2021-07-07OpenAIUnited States12,000,000,000bee-mouseLikely–
T5-11B2019-10-23GoogleUnited States11,000,000,000bee-mouseConfident–
UnifiedQA2020-05-02Allen Institute for AI,University of WashingtonUnited States11,000,000,000bee-mouseConfident–
Unicorn2021-03-24Allen Institute for AIUnited States11,000,000,000bee-mouseConfident–
PLATO-XL2021-09-20BaiduChina11,000,000,000bee-mouseConfident–
CoEdiT-xxl2023-05-17University of Minnesota,GrammarlyUnited States11,000,000,000bee-mouseLikely–
GQA-8-XXL2023-12-23Google ResearchUnited States11,000,000,000bee-mouseConfident–
XLMR-XXL2021-08-17Facebook AI ResearchFrance; United States10,700,000,000bee-mouseConfident–
Llama 3.2 11B2024-09-24Meta AIUnited States10,600,000,000bee-mouseConfident–
ERNIE 3.02021-07-05BaiduChina10,000,000,000bee-mouseConfident–
ERNIE-ViLG2021-12-31BaiduChina10,000,000,000bee-mouse––
Qwen-VL2023-08-24AlibabaChina9,600,000,000bee-mouseLikely–
Generative BST2021-03-05Facebook AI ResearchFrance; United States9,431,810,048bee-mouseConfident–
Sparse all-MLP2022-04-14Meta AIUnited States9,410,000,000bee-mouseConfident–
CogVideo2022-05-29Tsinghua University,Beijing Academy of Artificial China9,400,000,000bee-mouseSpeculativeunconfirmed
eDiff-I2022-11-02NvidiaUnited States9,100,000,000bee-mouseLikely–
Eagle 22025-01-20Nvidia,Nanjing University,Tsinghua University,HongChina; Hong Kong; United States8,930,000,000bee-mouseConfident–
MoE-Multi2017-01-23Jagiellonian University,Google BrainPoland; United States8,700,000,000bee-mouseConfident–
Qwen-Audio-Chat2023-11-14AlibabaChina8,460,000,000bee-mouseLikely–
Megatron-LM (8.3B)2019-09-17NvidiaUnited States8,300,000,000bee-mouseLikely–
BigSSL2021-01-10Google,AppleUnited States8,000,000,000bee-mouse––
Nemotron-3-8B2023-11-15NvidiaUnited States8,000,000,000bee-mouseConfident–
Stable Diffusion 32024-02-22Stability AIUnited Kingdom8,000,000,000bee-mouseConfident–
Qwen3 Embedding2025-06-05AlibabaChina8,000,000,000bee-mouseConfident–
Imagen2022-05-23Google BrainUnited States7,762,000,000bee-mouseLikely–
XGLM-7.5B2021-12-20Meta AI,Facebook AI ResearchFrance; United States7,500,000,000bee-mouseConfident–
RETRO-7B2022-02-07DeepMindUnited Kingdom7,500,000,000bee-mouseConfident–
OpenVLA2024-06-13Stanford University,University of California (UC) United States7,188,100,000bee-mouseConfident–
mPLUG-Owl22023-11-07AlibabaChina7,120,000,000bee-mouseSpeculativeunconfirmed
Goat-7B2023-05-23National University of SingaporeSingapore7,000,000,000bee-mouseSpeculativeunconfirmed
Llama 2-7B2023-07-18Meta AIUnited States7,000,000,000bee-mouseConfident–
Llama Guard2023-12-07Meta AIUnited States7,000,000,000bee-mouseConfident–
Qwen-VL-Max2024-01-25AlibabaChina7,000,000,000bee-mouseConfident–
Mathstral2024-07-16Mistral AIFrance7,000,000,000bee-mouseConfident–
Apollo 7B2024-12-13Meta AI,Stanford UniversityUnited States7,000,000,000bee-mouseConfident–
Eurus-2-7B-PRIME2025-01-02Tsinghua University,University of Illinois Urbana-China; United States7,000,000,000bee-mouseSpeculativeunconfirmed
INTELLECT-MATH2025-01-17Prime IntellectUnited States7,000,000,000bee-mouseConfident–
Incoder-6.7B2023-04-09Facebook AI Research,University of Washington,UnivFrance; United States6,700,000,000bee-mouseConfident–
ProGen2-xlarge2022-06-27Salesforce Research,Columbia University,Johns HopkUnited States6,400,000,000bee-mouseConfident–
GPipe (Transformer)2018-11-16GoogleUnited States6,000,000,000bee-mouseLikely–
InstructGPT 6B2022-01-27OpenAIUnited States6,000,000,000bee-mouseConfident–
Vega v22022-12-04Wuhan University,JD Explore Academy,Shanghai AI LaAustralia; China; Singapore; United Stat6,000,000,000bee-mouseConfident–
ChatGLM3-6B2023-10-27Z.ai (Zhipu AI)China6,000,000,000bee-mouseSpeculativeunconfirmed
MolmoAct 22026-04-05Allen Institute for AI,University of Washington,NaSingapore; United States5,485,309,424bee-mouseLikely–
T-NLRv5 XXL2021-12-03MicrosoftUnited States5,400,000,000bee-mouseConfident–
π0.6 (pi-0.6)2025-11-17Physical IntelligenceUnited States5,260,000,000bee-mouseConfident–
PaLI-32023-10-17Google DeepMind,Google Research,Google CloudUnited States5,000,000,000bee-mouseConfident–
Mesh-TensorFlow Transformer 4.9B (language)2018-11-05Google BrainUnited States4,900,000,000bee-mouseConfident–
W.A.L.T2023-12-11Stanford University,Google Research,Georgia InstitUnited States4,719,000,000bee-mouseConfident–
CogView2021-05-26Tsinghua University,Alibaba DAMO AcademyChina4,000,000,000bee-mouseLikely–
Make-A-Scene2022-03-24Meta AIUnited States4,000,000,000bee-mouseLikely–
ONE-PEACE2023-05-18Alibaba,Huazhong University of Science and TechnolChina4,000,000,000bee-mouseSpeculativeunconfirmed
Megatron-BERT2019-09-17NvidiaUnited States3,900,000,000bee-mouseConfident–
DALL·E 22022-04-06OpenAIUnited States3,500,000,000bee-mouseSpeculativeunconfirmed
Stable Diffusion XL (SDXL)2023-07-04Stability AIUnited Kingdom3,400,000,000bee-mouseSpeculativeunconfirmed
MusicGen2023-06-08Meta AIUnited States3,359,000,000bee-mouseLikely–
Gemini Nano-22023-12-19Google DeepMindUnited States3,250,000,000bee-mouseConfident–
Zidong Taichu2021-08-11Chinese Academy of Sciences,Wuhan AI Computing CenChina3,200,000,000bee-mouseConfident–
DeepNet2022-03-01Microsoft ResearchUnited States3,200,000,000bee-mouseConfident–
MS-ensemble-speech-recognition2016-09-12MicrosoftUnited States3,172,117,056bee-mouseLikely–
BASIC-L2021-11-19GoogleUnited States3,070,000,000bee-mouseLikely–
BASIC-L + Lion2023-02-13Google,University of California Los Angeles (UCLA)United States3,070,000,000bee-mouseConfident–
LEP-AD2023-03-15King Abdullah University of Science and TechnologySaudi Arabia; Sweden3,007,381,000bee-mouseConfident–
ViT-G/14 (LiT)2021-11-15Google ResearchUnited States3,005,000,000bee-mouseConfident–
ProtT5-XL-U502021-05-04Technical University of Munich,Med AI Technology,NChina; Germany; South Korea; United Stat3,000,000,000bee-mouseConfident–
Swin Transformer V2 (SwinV2-G)2021-11-18Microsoft Research AsiaChina3,000,000,000bee-mouseConfident–
LongT52021-12-15Google ResearchUnited States3,000,000,000bee-mouseConfident–
ReALM2024-03-29AppleUnited States3,000,000,000bee-mouseConfident–
Mesh-TensorFlow Transformer 2.9B (translation)2018-11-05Google BrainUnited States2,900,000,000bee-mouseLikely–
T5-3B2019-10-23GoogleUnited States2,800,000,000bee-mouseConfident–
DPO on Pythia-2.8B2023-05-29Stanford University,CZ Biohub NetworkUnited States2,800,000,000bee-mouseConfident–
AFM-on-device2024-07-29AppleUnited States2,730,000,000bee-mouseConfident–
PolyCoder2022-02-26Carnegie Mellon University (CMU)United States2,700,000,000bee-mouseLikely–
Hybrid H3-2.7B2022-12-28Stanford University,University at BuffaloUnited States2,700,000,000bee-mouseLikely–
GPT3-2.7B (FlashAttention-2)2023-07-18Stanford University,Princeton UniversityUnited States2,700,000,000bee-mouseConfident–
Meena2020-01-28Google BrainUnited States2,600,000,000bee-mouseConfident–
CPM-Large2020-12-01Tsinghua University,Beijing Academy of Artificial China2,600,000,000bee-mouseConfident–
Nucleotide Transformer2023-01-15Nvidia,Technical University of Munich,InstaDeepGermany; United Kingdom; United States2,500,000,000bee-mouseLikely–
Fugatto 12024-11-25NvidiaUnited States2,500,000,000bee-mouseConfident–
CoAtNet2021-06-09Google,Google Research,Google BrainUnited States2,440,000,000bee-mouseConfident–
GShard (dense)2020-06-30GoogleUnited States2,300,000,000bee-mouseConfident–
SeamlessM4T2023-12-08Facebook,INRIA,University of California (UC) BerkeFrance; United States2,300,000,000bee-mouseConfident–
Turing ULRv52021-09-28MicrosoftUnited States2,200,000,000bee-mouseConfident–
CoCa2022-06-14Google ResearchUnited States2,100,000,000bee-mouseConfident–
MuseNet2019-04-25OpenAIUnited States2,038,431,744bee-mouseLikely–
Infinity2024-12-05ByteDanceChina2,000,000,000bee-mouseConfident–
Seq2Seq LSTM2014-09-10GoogleUnited States1,920,000,000bee-mouseConfident–
BEIT-32022-08-22MicrosoftUnited States1,900,000,000bee-mouseLikely–
Ankh_large2023-01-16Technical University of Munich,Columbia UniversityGermany; United States1,900,000,000bee-mouseConfident–
ViT-G/142021-06-08Google Brain,Google ResearchUnited States1,843,000,000bee-mouseConfident–
ViT-G (model soup)2022-03-10University of Washington,Columbia University,GooglIsrael; United States1,843,000,000bee-mouseConfident–
Phenaki2022-10-05University College London (UCL),University of MichUnited Kingdom; United States1,800,000,000bee-mouse––
Gemini Nano-12023-12-19Google DeepMindUnited States1,800,000,000bee-mouseConfident–
DistBelief Vision2012-12-03GoogleUnited States1,700,000,000bee-mouseLikely–
Whisper2022-09-21OpenAIUnited States1,550,000,000bee-mouseLikely–
GPT-2 (1.5B)2019-02-14OpenAIUnited States1,500,000,000bee-mouseSpeculativeunconfirmed
DeBERTa2021-06-10MicrosoftUnited States1,500,000,000bee-mouseConfident–
AR-LDM2022-11-20Alibaba,University of Waterloo,Vector InstituteCanada; China1,500,000,000bee-mouseConfident–
AudioLM2023-07-26Google ResearchUnited States1,500,000,000bee-mouseSpeculativeunconfirmed
BLIP-2 (Q-Former)2023-01-30Salesforce ResearchUnited States1,480,000,000bee-mouseConfident–
LDM-1.45B2021-12-20Heidelberg University,RunwayGermany; United States1,450,000,000bee-mouseConfident–
Stable Diffusion (LDM-KL-8-G)2022-04-13Runway,Ludwig Maximilian University of Munich,HeidGermany; United States1,450,000,000bee-mouseConfident–
SEER2021-07-29Facebook AI Research,INRIAFrance; United States1,300,000,000bee-mouseConfident–
InstructGPT 1.3B2022-01-27OpenAIUnited States1,300,000,000bee-mouseConfident–
Megatron-LM (1.2B)2019-09-17NvidiaUnited States1,200,000,000bee-mouseConfident–
RDT-1B2024-10-10Tsinghua UniversityChina1,200,000,000bee-mouseLikely–
Gato2022-05-12DeepMindUnited Kingdom1,180,000,000bee-mouseConfident–
DINOv22023-04-14Facebook AI Research,INRIAFrance; United States1,140,000,000bee-mouseConfident–
Diffusion Renderer2025-03-22Nvidia,University of Toronto,Vector Institute,UnivCanada; United States1,100,000,000bee-mouseConfident–
InternImage2022-11-10Shanghai AI Lab,Tsinghua University,Nanjing UniverChina; Hong Kong1,080,000,000bee-mouseConfident–
EVA-012022-11-14Beijing Academy of Artificial Intelligence / BAAI,China1,011,000,000bee-mouseConfident–
Unsupervised High-level Feature Learner2012-07-12GoogleUnited States1,000,000,000bee-mouseLikelysparse (MoE)
Conformer + Wav2vec 2.0 + Noisy Student2020-10-20Google,Google Research,Google BrainUnited States1,000,000,000bee-mouseConfident–
HuBERT2021-07-27Facebook AI ResearchFrance; United States1,000,000,000bee-mouseSpeculativeunconfirmed
W2v-BERT2021-08-07Google Brain,Massachusetts Institute of TechnologyUnited States1,000,000,000bee-mouseConfident–
AudioGen2023-03-05Meta AI,Hebrew University of JerusalemIsrael; United States1,000,000,000bee-mouseLikely–
VideoMAE V22023-03-29Nanjing University,Shenzhen Institute of Advanced China1,000,000,000bee-mouseConfident–
TransE2013-12-05Universite de Technologie de Compiègne – CNRS,GoogFrance; United States942,000,000bee-mouseSpeculativeunconfirmed
ImageBind2023-05-09Meta AIUnited States932,000,000bee-mouseLikely–
Big Transfer (BiT-L)2019-12-24Google BrainUnited States928,000,000bee-mouse––
Florence2021-11-22MicrosoftUnited States893,000,000bee-mouseConfident–
NÜWA2021-11-24Microsoft Research,Peking UniversityChina; United States870,000,000bee-mouseConfident–
MusicLM2023-01-26GoogleUnited States860,000,000bee-mouseConfident–
ResNeXt-101 32x48d2018-05-02FacebookUnited States829,000,000bee-mouseConfident–
FixRes ResNeXt-101 WSL2019-06-14Facebook AIUnited States829,000,000bee-mouse––
ALIGN2021-06-11Google ResearchUnited States820,000,000bee-mouseConfident–
Statement Curriculum Learning2022-03-02OpenAIUnited States774,000,000bee-mouseLikely–
CodeT5-large2022-07-05SalesforceUnited States770,000,000bee-mouseLikely–
DITTO2022-06-06Tsinghua University,Apple,Westlake University,ChinChina; Hong Kong; United States750,000,000bee-mouseConfident–
FGN2025-06-12Google DeepMindUnited States720,000,000bee-mouseConfident–
data2vec (vision)2022-01-20Meta AIUnited States705,134,592bee-mouse––
data2vec (speech)2022-01-20Meta AIUnited States705,134,592bee-mouse––
data2vec (language)2022-01-20Meta AIUnited States705,134,592bee-mouseLikely–
Tranception2022-05-27University of Oxford,Harvard Medical School,CohereCanada; United Kingdom; United States700,000,000bee-mouseConfident–
Word2Vec (large)2013-10-16GoogleUnited States692,000,000bee-mouseLikely–
DiT-XL/22023-03-02New York University (NYU),University of CaliforniaUnited States675,000,000bee-mouseConfident–
DiT-XL/2 + CADS2023-10-26ETH Zurich,Disney ResearchSwitzerland; United States675,000,000bee-mouseLikely–
OmegaPLM2022-07-22Massachusetts Institute of Technology (MIT),WestlaChina; United States670,000,000bee-mouseConfident–
XLM2019-06-01FacebookUnited States665,000,000bee-mouse––
ESM1b2020-12-15Facebook AI Research,New York University (NYU)France; United States652,400,000bee-mouseConfident–
Segment Anything Model2023-04-05Meta AIUnited States636,000,000bee-mouseConfident–
ViT-Huge/142020-10-22Google Brain,Google ResearchUnited States632,000,000bee-mouseConfident–
Masked Autoencoders ViT-H2021-11-11Facebook AI ResearchFrance; United States632,000,000bee-mouseSpeculativeunconfirmed
Retrieval-Augmented Generator2020-05-22Facebook,New York University (NYU),University CollUnited Kingdom; United States626,000,000bee-mouseConfident–
DLDL (PASCAL)2016-11-06University of OxfordUnited Kingdom564,000,000bee-mouseLikely–
ADM2021-05-11OpenAIUnited States559,000,000bee-mouseConfident–
TrOCR2021-09-21Beihang University,Microsoft Research AsiaChina558,000,000bee-mouseConfident–
XLM-RoBERTa2019-11-05Facebook AIUnited States550,000,000bee-mouseConfident–
LUKE2020-10-02University of Washington,National Institute of InfJapan; United States483,000,000bee-mouseLikely–
EfficientNet-L22019-05-28GoogleUnited States480,000,000bee-mouse––
Noisy Student (L2)2019-11-11Carnegie Mellon University (CMU),GoogleUnited States480,000,000bee-mouseConfident–
Meta Pseudo Labels2021-03-01Google Brain,Google AIUnited States480,000,000bee-mouseLikely–
EMDR2021-06-09Mila – Quebec AI (originally Montreal Institute foCanada; United Kingdom440,000,000bee-mouseConfident–
NMT Transformer 437M2019-02-28Google,Bar-Ilan UniversityIsrael; United States437,700,000bee-mouseConfident–
Adaptive Inputs + LayerDrop2019-09-25Facebook AI Research,LORIAFrance; United States423,000,000bee-mouseConfident–
ProtBERT-BFD2021-05-04Technical University of Munich,Nvidia,Seoul NationChina; Germany; South Korea; United Stat420,000,000bee-mouseConfident–
OntoProtein2022-01-23Zhejiang University (ZJU)China420,000,000bee-mouseLikely–
DeBERTaV3large + KEAR2022-05-04MicrosoftUnited States418,000,000bee-mouseConfident–
BART-large2019-10-29Facebook AIUnited States406,291,456bee-mouseLikely–
SigLIP 400M2023-03-27Google DeepMindUnited States400,000,000bee-mouseConfident–
BERT-Large-CAS (PTB+WT2+WT103)2019-04-20AmazonUnited States395,000,000bee-mouseLikely–
MoCo2019-11-13Facebook AIUnited States375,000,000fly-bee––
SimCLR2020-02-13Google BrainUnited States375,000,000fly-bee––
CLIP (ViT L/14@336px)2021-01-05OpenAIUnited States370,000,000fly-beeConfident–
RoBERTa Large2019-07-01Facebook,University of WashingtonUnited States355,000,000fly-beeConfident–
AbLang (heavy sequences)2022-01-22University of OxfordUnited Kingdom355,000,000fly-beeConfident–
GPT-2 Medium (FlashAttention)2022-05-27Stanford University,University at BuffaloUnited States355,000,000fly-beeConfident–
VALL-E2023-01-05MicrosoftUnited States353,000,000fly-beeSpeculativeunconfirmed
BERT-Large2018-10-11GoogleUnited States340,000,000fly-beeConfident–
XLNet2019-06-01Carnegie Mellon University (CMU),Google BrainUnited States340,000,000fly-beeConfident–
ERNIE-GEN (large)2020-08-06BaiduChina340,000,000fly-beeSpeculativeunconfirmed
CamemBERT2019-11-10Facebook,INRIA,Sorbonne UniversityFrance; United States335,000,000fly-beeConfident–
ELECTRA2020-03-23Stanford University,Google,Google BrainUnited States335,000,000fly-beeLikely–
German ELECTRA Large2020-10-21deepset,Bayerische Staatsbibliothek MuenchenGermany335,000,000fly-beeConfident–
ALM 1.02022-11-28Beijing Academy of Artificial Intelligence / BAAIChina335,000,000fly-beeSpeculativeunconfirmed
MT-DNN2019-01-31MicrosoftUnited States330,000,000fly-beeConfident–
Fusion in Encoder2022-11-18SamsungSouth Korea330,000,000fly-beeLikely–
wave2vec 2.0 LARGE2020-10-22FacebookUnited States317,000,000fly-beeConfident–
CPC v22019-05-22DeepMind,University of California (UC) BerkeleyUnited Kingdom; United States303,000,000fly-bee––
Transformer – LibriVox + Decoding/Rescoring2019-11-19FacebookUnited States296,000,000fly-beeConfident–
DDPM-IP (CelebA)2023-01-27Utrecht UniversityNetherlands295,000,000fly-beeLikely–
GNMT2016-09-26GoogleUnited States278,000,000fly-beeLikelysparse (MoE)
base LM+GNN+kNN2021-10-17Shannon.AI,Nanjing University,Nanyang TechnologicaChina; Singapore274,000,000fly-beeConfident–
YOLO2015-06-08University of Washington,Allen Institute for AI,FaFrance; United States271,684,800fly-bee––
Transformer-XL (257M)2019-01-09Carnegie Mellon University (CMU),Google BrainUnited States257,000,000fly-beeSpeculativeunconfirmed
Transformer-XL + RMS dynamic eval2019-04-17University of EdinburghUnited Kingdom257,000,000fly-beeConfident–
Transformer-XL Large + Phrase Induction2019-06-04Massachusetts Institute of Technology (MIT),UniverUnited States257,000,000fly-beeSpeculativeunconfirmed
Segatron-XL large, M=384 + HCP2022-03-21Microsoft Research,University of WaterlooCanada; United States257,000,000fly-beeConfident–
Denoising Diffusion Probabilistic Models (LSUN Bedroom)2021-06-11University of California (UC) BerkeleyUnited States256,000,000fly-beeConfident–
Pangu-Weather2023-07-05HuaweiChina256,000,000fly-beeConfident–
SPN (ImageNet 128)2018-12-04Google Brain,DeepMindUnited Kingdom; United States250,000,000fly-beeConfident–
S42021-10-31Stanford UniversityUnited States249,000,000fly-beeLikely–
Base LM + kNN LM + Continuous Cache2019-11-01Stanford University,Facebook AI ResearchFrance; United States247,000,000fly-beeLikely–
ERNIE-Doc (247M)2020-12-31BaiduChina247,000,000fly-beeConfident–
Adaptive Input Transformer + RD2021-06-28Microsoft Research Asia,Soochow UniversityChina; Taiwan247,000,000fly-beeLikely–
Transformer (Adaptive Input Embeddings) WT1032018-09-28Facebook AI ResearchFrance; United States247,000,000fly-beeConfident–
TaLK Convolution2020-02-08Carleton UniversityCanada240,000,000fly-beeLikely–
ALBERT-xxlarge2020-02-09Toyota Technological Institute at Chicago,GoogleUnited States235,000,000fly-beeSpeculativeunconfirmed
SRU++ Large2021-02-24ASAPPUnited States234,000,000fly-beeConfident–
GR-22024-10-08ByteDanceChina230,000,000fly-beeConfident–
MaskGIT (ImageNet)2022-02-08Google ResearchUnited States227,000,000fly-beeConfident–
MetNet2020-03-24GoogleUnited States225,000,000fly-beeSpeculativeunconfirmed
FFN SwiGLU2020-02-14GoogleUnited States220,000,000fly-beeConfident–
CodeT5-base2021-11-01Salesforce,Nanyang Technological UniversitySingapore; United States220,000,000fly-beeLikely–
Transformer2017-06-12Google Research,Google BrainUnited States213,000,000fly-beeConfident–
Sandwich Transformer2019-11-10Allen Institute for AI,Facebook AI ResearchFrance; United States209,000,000fly-beeSpeculativeunconfirmed
EfficientNetV2-XL2021-06-23Google,Google BrainUnited States208,000,000fly-beeConfident–
Word2Vec (small)2013-10-16GoogleUnited States207,600,000fly-bee––
Multilingual DNN2013-05-26GoogleUnited States206,899,200fly-beeConfident–
DreamerV32023-01-10DeepMind,University of TorontoCanada; United Kingdom200,000,000fly-beeLikely–
DL scaling speech2017-12-01BaiduChina193,000,000fly-beeLikely–
ResNeXt-101 Billion-scale2019-05-02Facebook AIUnited States193,000,000fly-bee––
(ensemble): AWD-LSTM-DOC (fin) × 5 (WT2)2018-08-30NTT Communication Science Laboratories,Tohoku UnivJapan185,000,000fly-beeConfident–
TrellisNet2018-10-15Carnegie Mellon University (CMU),Bosch Center for Germany; United States180,000,000fly-beeConfident–
DL scaling LM2017-12-01BaiduChina177,000,000fly-beeSpeculativeunconfirmed
EXAONE Path 2.02025-07-09LG AI ResearchSouth Korea175,000,000fly-beeConfident–
OpenAI Five Rerun2019-12-13OpenAIUnited States159,000,000fly-beeConfident–
OpenAI Five2019-12-13OpenAIUnited States159,000,000fly-beeConfident–
4 layer QRNN (h=2500)2018-03-22Salesforce ResearchUnited States151,000,000fly-beeLikely–
TransformerXL + spectrum control2020-03-11University of California Los Angeles (UCLA),JD.comChina; United States151,000,000fly-beeSpeculativeunconfirmed
AlphaGeometry2024-01-17Google DeepMind,New York University (NYU)United States151,000,000fly-beeConfident–
PermuteFormer2021-09-06Peking UniversityChina149,697,024fly-beeSpeculativeunconfirmed
Fragment embedding2014-06-21Stanford UniversityUnited States144,496,000fly-beeLikely–
OverFeat2013-12-21New York University (NYU)United States144,000,000fly-beeConfident–
VGG192014-09-04University of OxfordUnited Kingdom144,000,000fly-beeLikely–
LRCN2014-11-07UT Austin,University of Massachusetts Lowell,UniveUnited States142,552,000fly-bee––
Transformer-XL DeFINE (141M)2019-11-27University of Washington,Allen Institute for AIUnited States141,000,000fly-beeSpeculativeunconfirmed
Deep Autoencoders2011-04-29University of TorontoCanada139,808,256fly-beeConfident–
AlphaStar2019-10-30DeepMindUnited Kingdom139,000,000fly-beeConfident–
VGG162014-09-04University of OxfordUnited Kingdom138,000,000fly-beeConfident–
VGG-Face2015-01-01University of OxfordUnited Kingdom138,000,000fly-beeConfident–
SAF R-CNN2015-10-28Beijing Institute of Technology,Sun Yat-sen UniverChina; Singapore138,000,000fly-beeLikely–
Template Adaptation2016-03-12University of OxfordUnited Kingdom138,000,000fly-beeLikely–
LRR-4X2016-05-08UC IrvineUnited States138,000,000fly-beeLikely–
CMS-RCNN2016-06-17IEEEMultinational138,000,000fly-beeLikely–
QRNN2018-02-01Salesforce ResearchUnited States135,000,000fly-beeLikely–
Multiresolution CNN2014-06-23Google,Stanford UniversityUnited States126,125,568fly-bee––
FTW (For The Win)2018-07-03DeepMindUnited Kingdom126,001,330fly-beeSpeculativeunconfirmed
Feedback Transformer2020-02-21LORIA,University of Lorraine,Facebook AI ResearchFrance; United States126,000,000fly-beeSpeculativeunconfirmed
KEPLER2020-11-23Tsinghua University,Mila – Quebec AI (originally MCanada; China; France; United States125,000,000fly-beeConfident–
DL scaling Image2017-12-01BaiduChina121,000,000fly-beeConfident–
GloVe (32B)2014-01-01Stanford UniversityUnited States120,000,000fly-bee––
GloVe (6B)2014-01-01Stanford UniversityUnited States120,000,000fly-bee––
Conformer2020-05-16GoogleUnited States118,800,000fly-beeConfident–
GPT-12018-06-01OpenAIUnited States117,000,000fly-beeLikely–
ContextNet2020-05-07GoogleUnited States112,700,000fly-beeLikely–
SciBERT2019-03-26Allen Institute for AIUnited States110,000,000fly-beeConfident–
DNABERT2021-08-15Northeastern UniversityUnited States110,000,000fly-beeConfident–
Contriever2021-12-16Meta AI,University College London (UCL),PSL UniverFrance; United Kingdom; United States110,000,000fly-beeLikely–
BERT-RBP2022-04-07Waseda UniversityJapan110,000,000fly-beeConfident–
RoFormer2023-11-08Zhuiyi TechnologyChina110,000,000fly-beeConfident–
LSTM LM2012-09-09RWTH Aachen UniversityGermany102,720,000fly-beeSpeculativeunconfirmed
ReLU-Speech2013-05-26Google,University of Toronto,New York University (Canada; United States101,706,240fly-beeLikely–
STORM-B/82024-12-31University of Southern California,Georgia InstitutUnited States100,598,707fly-beeConfident–
Support Vector Machines1995-09-01AT&T,Bell LaboratoriesUnited States100,000,000fly-bee–not a neural network
GPU DBNs2009-06-15Stanford UniversityUnited States100,000,000fly-beeConfident–
MSA Transformer2021-02-13Facebook AI Research,University of California (UC)France; United States100,000,000fly-beeLikely–
YOLOX-X2021-08-06Megvii IncChina99,100,000fly-beeLikely–
DeLighT2020-08-03University of Washington,Allen Institute for AI,FaFrance; United States99,000,000fly-beeLikely–
ELMo2018-02-01University of Washington,Allen Institute for AIUnited States94,000,000fly-beeSpeculativeunconfirmed
AlphaFold 22020-11-30DeepMindUnited Kingdom93,000,000fly-beeLikely–
AlphaMissense2023-09-22Google DeepMindUnited States93,000,000fly-beeLikely–
Octo-Base2024-05-20University of California (UC) Berkeley,Stanford UnUnited Kingdom; United States93,000,000fly-beeConfident–
PolyNet2016-11-17Chinese University of Hong Kong (CUHK)Hong Kong92,000,000fly-beeLikely–
Transformer local-attention (NesT-B)2021-05-26Google Cloud,Google ResearchUnited States90,100,000fly-beeConfident–
Transformer + Simple Recurrent Unit2018-09-17ASAPP,Cornell University,Google,Princeton UniversiUnited States90,000,000fly-beeConfident–
NASNet-A2017-07-21Google BrainUnited States89,000,000fly-bee––
CLIP (ResNet-50)2021-01-05OpenAIUnited States88,600,000fly-beeLikely–
Detic2022-01-07Meta AI,University of Texas at AustinUnited States88,000,000fly-beeSpeculativeunconfirmed
MSRA (C, PReLU)2015-02-06Microsoft ResearchUnited States87,048,800fly-beeConfident–
BigBiGAN2019-07-04GoogleUnited States86,000,000fly-bee––
ViT-Base/322020-10-22Google BrainUnited States86,000,000fly-bee––
DeiT-B2021-01-15Meta AI,Sorbonne UniversityFrance; United States86,000,000fly-beeConfident–
CaLM2022-12-19University of OxfordUnited Kingdom86,000,000fly-beeLikely–
Tensor-Transformer(1core)+PN (WT103)2020-03-17University of California (UC) BerkeleyUnited States85,300,000fly-beeConfident–
ResNeXt-101 (64×4d)2016-11-16University of California San Diego,FacebookUnited States83,000,000fly-beeConfident–
RBM Image Classifier2009-04-08University of TorontoCanada80,000,000fly-beeLikely–
Routing Transformer (WT-103)2020-03-12Google ResearchUnited States79,500,000fly-beeConfident–
Big-Little Net2018-07-10IBMUnited States77,360,000fly-beeLikely–
EfficientDet2020-07-27Google BrainUnited States77,000,000fly-bee––
CODEFUSION (Python)2023-10-26Microsoft,Microsoft ResearchUnited States75,000,000fly-beeConfident–
RNN LM2010-09-26Johns Hopkins UniversityUnited States70,265,000fly-beeSpeculativeunconfirmed
R-CNN (T-net)2013-11-11University of California (UC) BerkeleyUnited States69,003,872fly-bee––
Variational (untied weights, MC) LSTM (Large)2015-12-16University of CambridgeUnited Kingdom66,000,000fly-beeConfident–
DistilBERT2019-10-02Hugging FaceUnited States66,000,000fly-beeConfident–
Theseus 6/7682020-02-07University of California San Diego,Beihang UniversChina; United States66,000,000fly-beeConfident–
ResNet-152 (ImageNet)2015-12-10MicrosoftUnited States60,200,000fly-beeConfident–
AlexNet2012-09-30University of TorontoCanada60,000,000fly-beeConfident–
DETR2020-05-26FacebookUnited States60,000,000fly-beeConfident–
YOLOv32018-04-08University of WashingtonUnited States56,933,216fly-beeLikely–
Inception-ResNet-V22016-02-23GoogleUnited States56,000,000fly-bee––
Transformer ELMo2019-01-01Allen Institute for AI,University of WashingtonUnited States56,000,000fly-beeConfident–
NAS with base 8 and shared embeddings2016-11-05Google BrainUnited States54,000,000< flyConfident–
RetinaNet-R1012017-08-07Facebook AI ResearchFrance; United States53,000,000< flyConfident–
AWD-LSTM+WT+Cache+IOG (WT2)2017-09-26NTT Communication Science LaboratoriesJapan53,000,000< flyConfident–
Hierarchical Scene Labeling (Stanford Background)2013-08-01New York University (NYU)United States51,609,600< flyConfident–
VD-LSTM+REAL Large2016-11-04Salesforce Research,Stanford UniversityUnited States51,000,000< flyConfident–
YOLOv22016-12-25University of Washington,Allen Institute for AIUnited States51,000,000< fly––
Dropout-LSTM+Noise(Bernoulli) (WT2)2018-05-03Columbia University,New York University (NYU),PrinUnited States51,000,000< flyLikely–
LSTM + dynamic eval2017-09-21University of EdinburghUnited Kingdom50,000,000< flyLikely–
Dropout (TIMIT)2012-06-03University of TorontoCanada48,840,185< fly––
Dropout: SVHN2014-06-01University of TorontoCanada47,795,232< flyConfident–
DistBelief Speech2012-12-03GoogleUnited States47,185,920< flySpeculativeunconfirmed
AlphaGo Zero2017-10-18DeepMindUnited Kingdom46,400,244< flyConfident–
Fine-tuned-AWD-LSTM-DOC (fin)2018-11-12Samsung R&D Institute RussiaRussia46,000,000< flyConfident–
CT-MoS (WT2)2020-12-25Google,National Tsing Hua UniversityTaiwan; United States45,000,000< flyConfident–
JFT2017-07-10Google Research,Carnegie Mellon University (CMU)United States44,654,504< flyConfident–
ResNet-101 (ImageNet)2015-12-10MicrosoftUnited States44,500,000< flyConfident–
HR-ResNet1012016-12-13Carnegie Mellon University (CMU)United States44,500,000< flyConfident–
3DMM-CNN2016-12-15University of Southern CaliforniaUnited States44,500,000< flyConfident–
LaNet-L (CIFAR-10)2019-06-17Brown University,FacebookUnited States44,100,000< flyConfident–
ProBERTa2020-09-01University of Illinois Urbana-Champaign (UIUC),ReeUnited States44,000,000< flyConfident–
PreTrans-3L-250H2013-03-22University of TorontoCanada43,000,000< fly––
Inceptionv42016-02-23GoogleUnited States43,000,000< fly––
GL-LWGC-AWD-MoS-LSTM + dynamic evaluation (WT2)2017-08-29Ben-Gurion University of the NegevIsrael38,000,000< flyConfident–
U-Net2015-05-18University of FreiburgGermany37,676,160< flyConfident–
NASv3 (CIFAR-10)2016-11-05Google BrainUnited States37,400,000< flyLikely–
MuZero2019-11-19DeepMindUnited Kingdom36,864,000< flySpeculativeunconfirmed
AWD-LSTM-MoS + dynamic evaluation (WT2, 2017)2017-11-10Carnegie Mellon University (CMU)United States35,000,000< flyLikely–
AWD-LSTM-MoS+PDR + dynamic evaluation (WT2)2018-08-14IBMUnited States35,000,000< flyConfident–
AWD-LSTM-MoS + dynamic evaluation (WT2, 2018)2018-09-18Peking University,Microsoft Research AsiaChina35,000,000< flyConfident–
AWD-LSTM + MoS + Partial Shuffled2019-06-10University of Texas at AustinUnited States35,000,000< flyConfident–
Mogrifier (d2, MoS2, MC) + dynamic eval2019-09-04DeepMind,University of OxfordUnited Kingdom35,000,000< flyConfident–
Mogrifier RLSTM (WT2)2022-11-03DeepMindUnited Kingdom35,000,000< flyConfident–
RT-12022-12-13GoogleUnited States35,000,000< flyConfident–
DenseNet-2642016-08-25Tsinghua University,Facebook AI Research,Cornell UChina; France; United States34,000,000< flyConfident–
RetinaNet-R502017-08-07Facebook AI ResearchFrance; United States34,000,000< fly––
Fraternal dropout + AWD-LSTM 3-layer (WT2)2017-10-31Jagiellonian University,Mila – Quebec AI (originalCanada; Poland34,000,000< flyLikely–
AWD-LSTM-DRILL + dynamic evaluation† (WT2)2019-05-14IDIAPSwitzerland34,000,000< flyLikely–
AWD-LSTM – 3-layer LSTM (tied) + continuous cache pointer (WT2)2017-08-07Salesforce ResearchUnited States33,000,000< flyConfident–
TCAN (WT2)2020-02-28Nanjing University,Ant GroupChina33,000,000< flyConfident–
MMLSTM (WT-2)2019-12-05Beijing University of Posts and TelecommunicationsChina; United Kingdom32,300,000< flyLikely–
Paragraph Vector2014-05-14GoogleUnited States32,000,000< flyConfident–
aLSTM(depth-2)+RecurrentPolicy (WT2)2018-05-22University of Manchester,Alan Turing InstituteUnited Kingdom32,000,000< flyConfident–
StyleGAN22019-12-03Nvidia,Aalto UniversityFinland; United States30,000,000< flyConfident–
UDSMProt2019-09-04Fraunhofer Heinrich Hertz InstituteGermany28,303,800< flyLikely–
SENet (ImageNet)2017-09-05Chinese Academy of Sciences,University of OxfordChina; United Kingdom28,100,000< fly––
Perceiver IO (optical flow)2020-02-08DeepMindUnited Kingdom27,900,000< flyConfident–
Fractional Max-Pooling2014-12-18University of WarwickUnited Kingdom27,000,000< flyLikely–
Hierarchical Reasoning Model (HPM)2025-08-04Sapient IntelligenceSingapore27,000,000< flyConfident–
RNN-WER2014-06-22DeepMind,University of TorontoCanada; United Kingdom26,500,000< flyLikely–
StyleGAN2018-12-12NvidiaUnited States26,200,000< flyConfident–
PyramidNet2017-09-06Korea Advanced Institute of Science and TechnologySouth Korea26,000,000< flyLikely–
ResNeXt-502016-11-16University of California San Diego,FacebookUnited States25,000,000< flyLikely–
AWD-LSTM2017-07-18DeepMind,University of OxfordUnited Kingdom24,000,000< flyConfident–
Inception v32015-12-02Google,University College London (UCL)United Kingdom; United States23,626,728< flyLikely–
Mamba-24M (SC09)2023-12-01Carnegie Mellon University (CMU),Princeton UniversUnited States23,400,000< flyConfident–
WeNet (Penn Treebank)2019-04-08AmazonUnited States23,000,000< flyLikely–
EN^2AS with performance reward2019-07-22Beijing Institute of Technology,University of TechAustralia; China23,000,000< fly––
NAS+ESS (23M)2020-05-06Northeastern University (China),NiuTrans Research,China23,000,000< flyConfident–
Xception2016-10-07GoogleUnited States22,855,952< flyConfident–
MetaMimic2018-10-11GoogleUnited States22,000,000< fly––
MMLSTM (PTB)2019-12-05Beijing University of Posts and TelecommunicationsChina; United Kingdom21,300,000< flyLikely–
Pointer Sentinel-LSTM (medium)2016-09-26MetaMind Inc,SalesforceUnited States21,000,000< flyConfident–
DiffDock2022-10-04Massachusetts Institute of Technology (MIT)United States20,240,000< flyLikely–
EI-REHN-1000D2017-08-14Korea Advanced Institute of Science and TechnologySouth Korea19,000,000< flyConfident–
TC-DNN-BLSTM-DNN2015-04-06Carnegie Mellon University (CMU)United States18,413,568< flyConfident–
OR-WideResNet2017-01-07Duke University,University of Chinese Academy of SChina; United States18,200,000< flyConfident–
BP-DBN2009-01-01University of TorontoCanada18,030,592< flyConfident–
ALBERT2019-09-26Toyota Technological Institute at Chicago,Google RUnited States18,000,000< flyConfident–
MedBERT2021-05-20Peng Cheng Laboratory,University of Texas at HoustChina; United States17,000,000< flyLikely–
LCNP NORB2009-11-2216,818,176< flyConfident–
LF-MMI2016-09-08Johns Hopkins University,Cornell UniversityUnited States16,600,000< flyConfident–
AlphaFold2020-01-15DeepMindUnited Kingdom16,340,840< flySpeculativeunconfirmed
GNoME for crystal discovery2023-11-29Google DeepMindUnited States16,240,000< flyLikely–
ReLU (NORB)2010-06-15University of TorontoCanada16,210,006< fly––
ProteinBERT2022-02-10Hebrew University of Jerusalem,Ben-Gurion UniversiIsrael; United States16,000,000< flyConfident–
Eve2021-10-27Harvard Medical School,University of OxfordUnited Kingdom; United States15,010,300< flyLikely–
LCNP LabelMe2009-11-22University of BonnGermany13,729,792< flyConfident–
BatchNorm2015-06-15GoogleUnited States13,600,000< flyConfident–
Fold2Seq2021-06-24IBM,Texas A&MUnited States12,427,904< flySpeculativeunconfirmed
NPLM (AP News)2003-03-15University of Montreal / Université de MontréalCanada11,904,264< flyConfident–
LCNP MNIST2009-11-2211,616,256< flyConfident–
ISS2017-09-15Duke University,MicrosoftUnited States11,100,000< flyConfident–
ResNet-10012016-09-17MicrosoftUnited States10,200,000< fly––
RNN+LDA+KN5+cache2012-12-01Microsoft,Brno University of TechnologyCzechia; United States9,000,000< fly––
Gated HORNN (3rd order)2016-04-30York UniversityCanada8,970,000< fly––
AlphaGo Fan2015-10-01DeepMindUnited Kingdom8,209,984< flyLikely–
genCNN + dyn eval2015-03-17Chinese Academy of Sciences,Huawei Noah’s Ark Lab,China; Ireland8,000,000< flySpeculativeunconfirmed
Once for All2020-04-29MIT-IBM Watson AI Lab,Massachusetts Institute of TUnited States7,700,000< flyConfident–
Multi-cell LSTM2018-11-15University of HyderabadIndia7,200,000< flyLikely–
Feedforward NN2010-05-13University of Montreal / Université de MontréalCanada7,082,000< flyConfident–
True-Regularization+Finetune+Dynamic-Eval2019-04-08Mobvoi,Williams CollegeChina; United States7,000,000< flyConfident–
Neural LM2000-11-28University of Montreal / Université de MontréalCanada6,906,980< flyConfident–
GoogLeNet / InceptionV12014-09-17Google,University of Michigan,University of North United States6,797,700< flyConfident–
HyenaDNA2023-06-27Stanford University,Harvard University,Mila – QuebCanada; United States6,600,000< flyConfident–
Dropout (MNIST)2012-06-03University of TorontoCanada5,594,010< flyConfident–
SimpleNet2016-08-22Sensifai,Islamic Azad University,Technicolor R&I,IBelgium; France; Iran (Islamic Republic 5,480,000< flyConfident–
AlphaX-12019-10-02Facebook AI Research,Brown UniversityFrance; United States5,400,000< flyConfident–
3DDFA2015-11-23Chinese Academy of Sciences,Michigan State UniversChina; United States5,355,584< flyConfident–
Deep CNN + COTS2015-07-26IEEEMultinational5,006,000< flyConfident–
DCNN2015-08-07University of Maryland,Rutgers UniversityUnited States5,006,000< flyConfident–
NLP from scratch2011-11-08NEC Laboratories,Princeton UniversityUnited States5,000,000< fly––
SPN-4+KN52014-09-14Singapore University of Technology & Design,DSO NaSingapore5,000,000< flyLikely–
6-Act Tether2021-08-03Facebook AI Research,Georgia Institute of TechnoloFrance; United States5,000,000< flyConfident–
High Performance CNN (NORB)2011-07-16IDSIA,SUPSISwitzerland4,878,300< flyLikely–
MobileNet2017-04-17GoogleUnited States4,200,000< fly––
NPLM (Brown)2003-03-15University of Montreal / Université de MontréalCanada4,124,233< flyConfident–
LMICA2004-12-014,096,000< flyConfident–
PoE MNIST2000-11-28University College London (UCL)United Kingdom3,925,310< flyConfident–
Dimensionality Reduction2006-07-18University of TorontoCanada3,800,000< fly––
GOAT2021-07-27DeepMindUnited Kingdom3,472,816< flySpeculativeunconfirmed
MobileNetV22018-06-18GoogleUnited States3,400,000< fly––
Big-Little Net (speech)2018-07-10IBMUnited States3,320,000< flySpeculativeunconfirmed
DLWP2021-02-09University of Washington,Microsoft ResearchUnited States2,676,376< flyConfident–
BIDAF2016-11-05University of Washington,Allen Institute for AIUnited States2,600,000< flyConfident–
DeepStack2017-01-06University of Alberta,Charles University,Czech TecCanada; Czechia2,500,000< flySpeculativeunconfirmed
KataGo2019-02-27Jane StreetUnited States2,500,000< flySpeculativeunconfirmed
ShuffleNet v12017-07-03Megvii IncChina2,430,000< fly––
ADAM (CIFAR-10)2014-12-22University of Amsterdam,OpenAI,University of ToronCanada; Netherlands; United States2,370,000< flyConfident–
StyleGAN3-T2021-06-21Nvidia,Aalto UniversityFinland; United States2,230,000< flyConfident–
LSTM+NeuralCache2018-09-24KU Leuven,ESAT – PSI,AppleBelgium; United States2,100,000< flyLikely–
HLBL2008-12-08University of TorontoCanada1,846,400< flyConfident–
ResNet-110 (CIFAR-10)2015-12-10MicrosoftUnited States1,700,000< fly––
Dueling DQN2016-04-05Google DeepMindUnited States1,700,000< flyConfident–
DQN-20152015-02-25GoogleUnited States1,693,362< fly––
Rational DQN Average2021-02-18TU DarmstadtGermany1,683,456< fly––
IBM-51993-06-15IBMUnited States1,658,364< fly––
Deep Belief Nets2006-07-18University of Toronto,National University of SingaCanada; Singapore1,600,000< fly––
IMPALA2018-02-05DeepMindUnited Kingdom1,600,000< flyConfident–
StyleGAN3-R2021-06-21Nvidia,Aalto UniversityFinland; United States1,580,000< flyConfident–
Deep Multitask NLP Network2008-07-05NEC LaboratoriesUnited States1,500,000< flySpeculativeunconfirmed
Double DQN2016-03-02Google DeepMindUnited States1,500,000< flyConfident–
CNN committee (traffic sign)2011-10-03IDSIASwitzerland1,388,800< flyLikely–
SqueezeNet2016-02-24DeepScale,University of California (UC) Berkeley,SUnited States1,200,000< fly––
Neocognitron1980-04-01NHK Broadcasting Science Research LaboratoriesJapan1,140,576< flyConfident–
CURL2020-04-08University of California (UC) BerkeleyUnited States907,264< fly––
DQN2013-12-19DeepMindUnited Kingdom836,096< flyConfident–
EnhanceNet2016-12-23Max Planck Institute for Intelligent SystemsGermany814,464< flyConfident–
Image generation2013-12-20University of AmsterdamNetherlands784,000< flyConfident–
Hanabi 4 player2019-02-01DeepMind,University of Oxford,Carnegie Mellon UnivUnited Kingdom; United States764,000< flyConfident–
TA-CNN2014-11-29Chinese University of Hong Kong (CUHK)Hong Kong706,048< flyLikely–
Robot Parkour2023-09-12Shanghai Qi Zhi institute,Stanford University,CarnChina; United States500,000< flyConfident–
LISSOM1995-11-27University of Texas at AustinUnited States432,800< flyLikely–
SPIDER22016-10-28Griffith University,University of Iowa,Dezhou UnivAustralia; China; United States409,536< flyLikely–
Mixture of linear models1994-12-02384,000< flyLikely–
NPD2014-08-06IEEEMultinational313,856< flyConfident–
Pooling CNN (Caltech 101)2010-09-15University of BonnGermany294,912< flyConfident–
Pooling CNN (NORB)2010-09-15University of BonnGermany268,664< flyConfident–
Two Stage Feature Extraction (MNIST)2009-09-01New York University (NYU)United States258,800< flyConfident–
Vector Space Model2011-06-19Stanford UniversityUnited States255,000< flyConfident–
HyperNEAT2014-03-05University of Texas at AustinUnited States239,712< fly––
DNN EM segmentation2012-12-03IDSIA,SUPSISwitzerland218,896< flyConfident–
Predictive Coding NN1994-12-02Technical University of MunichGermany206,910< flyConfident–
Table Tennis Agent2024-08-07Google DeepMindUnited States185,000< flyLikely–
CNN Committee (NIST)2011-09-18IDSIASwitzerland128,420< flyLikely–
CNN Committee (MNIST)2011-09-18IDSIASwitzerland120,620< flyLikely–
RECONTRA-uncategorized1999-06-02112,000< flyLikely–
BLSTM for handwriting (2)2007-12-03University of Bern,IDSIA,Technical University of MGermany; Switzerland100,881< fly––
SVM-CNN2006-06-17New York University (NYU)United States90,857< flyConfident–
Invariant CNN2004-06-27New York University (NYU)United States90,575< flyConfident–
SexNet compression1990-10-0172,940< flyConfident–
NeuroChess1994-12-0272,251< flySpeculativeunconfirmed
RECONTRA-categorized1999-06-0266,780< flyLikely–
LeNet-51998-11-01AT&TUnited States60,000< flyConfident–
Swift2023-08-30Intel LabsUnited States56,804< flyLikely–
TCN (P-MNIST)2018-02-15Carnegie Mellon University (CMU),Intel LabsUnited States42,000< flyConfident–
TRPO2015-02-19University of California (UC) BerkeleyUnited States33,500< flyConfident–
SOM-CNN1997-01-3132,015< flyConfident–
NETtalk reimplementation1990-06-01Oregon State UniversityUnited States27,480< flyConfident–
TD-Gammon1992-05-01IBMUnited States25,000< flySpeculativeunconfirmed
Cognitron1975-09-01Biological CyberneticsJapan21,600< flyConfident–
NetTalk (transcription)1987-06-06Princeton UniversityUnited States18,629< flyConfident–
NetTalk (dictionary)1987-06-06Princeton UniversityUnited States18,629< flyConfident–
CFSS2015-06-07SenseTime,Chinese University of Hong Kong (CUHK),SChina; Hong Kong17,408< flyLikely–
MUSIC perceptron1996-06-0313,607< flyConfident–
AdaRNN2014-06-01Beihang UniversityChina13,040< flyConfident–
Bidirectional RNN1997-11-01Advanced Telecommunications Research InstituteJapan13,000< fly––
Decision tree (classification)2001-12-08Mitsubishi Electric Research Labs,Compaq CRLUnited States12,000< flyLikely–
LSTM1997-11-15Technical University of MunichGermany10,504< flyConfident–
MLN-ASR1988-08-01McGill UniversityCanada10,000< flyConfident–
Hopfield network1982-04-01California Institute of TechnologyUnited States9,900< fly––
Zip CNN1989-12-01AT&T,Bell LaboratoriesUnited States9,760< flyConfident–
Hierarchical Cognitron1984-04-01NHK Broadcasting Science Research LaboratoriesJapan9,315< flySpeculativeunconfirmed
Weight Decay1991-12-028,386< flyConfident–
Deep Blue1997-05-01IBMUnited States8,000< flySpeculativeunconfirmed
System 111996-06-18Carnegie Mellon University (CMU)United States6,452< flyConfident–
ACF-WIDER2014-07-15Chinese Academy of SciencesChina6,144< flyConfident–
RankNet2005-08-07Microsoft Research,MicrosoftUnited States5,711< flyConfident–
ANN Eye Tracker1993-11-295,620< flyConfident–
JPMAX1994-12-024,446< flySpeculativeunconfirmed
Kohonen network1981-07-25Helsinki University of TechnologyFinland4,096< fly––
Speaker-independent vowel classification1989-11-27University of WashingtonUnited States3,040< flyConfident–
Pattern recognition and reading by machine1959-12-01Sandia CorporationUnited States2,625< fly––
Handwritten digit recognition network1989-11-27AT&TUnited States2,578< flyConfident–
Boosting1992-11-30Bell LaboratoriesUnited States2,578< flyLikely–
Decision tree adaline1969-05-01Tokyo Medical and Dental UniversityJapan2,450< flyConfident–
LTE speaker verification system1966-11-01IBMUnited States2,061< flyLikely–
Ceramic-MLP1994-01-07Sapienza Università di RomaItaly1,888< flyLikely–
SexNet classification1990-10-011,640< flyLikely–
RAAM1990-11-011,536< flyConfident–
Super-vector coding2010-01-01University of Illinois Urbana-Champaign (UIUC),NECUnited States1,025< flySpeculativeunconfirmed
Perceptron Mark I1957-01-01Cornell Aeronautical Laboratory,Cornell UniversityUnited States1,000< flyLikely–
Perceptron (1960)1960-03-30Cornell Aeronautical LaboratoryUnited States1,000< flySpeculativeunconfirmed
Translation-invariant MLP1987-06-15Carnegie Mellon University (CMU)United States816< flyConfidentsparse (MoE)
Truck backer-upper1989-06-18Stanford UniversityUnited States805< flyConfident–
Siamese-TDNN1993-08-01Bell LaboratoriesUnited States744< flyLikely–
MLP with back-propagation1986-10-01University of California San Diego,Carnegie MellonUnited States720< flyConfident–
Cancer drug mechanism prediction1992-10-16National Cancer InstituteUnited States594< flyLikely–
Distributed representation NN1986-08-15Carnegie Mellon University (CMU)United States432< flyConfidentsparse (MoE)
Piecewise linear model1973-11-01University of KansasUnited States357< flyConfident–
ASE+ACE1983-09-01University of Massachusetts AmherstUnited States324< flyLikely–
LSTM with forget gates1999-01-02IDSIASwitzerland276< fly––
Self Organizing System1955-03-01Massachusetts Institute of Technology (MIT)United States225< fly––
Theseus1950-07-02Bell LaboratoriesUnited States40< flyConfident–
SNARC1952-01-08Harvard UniversityUnited States40< fly––
Bankruptcy-NN1990-06-1736< flyConfident–
GNN2008-12-09University of SienaItaly30< flyConfident–
ADALINE1960-06-30Stanford UniversityUnited States17< flyConfident–
Samuel Neural Checkers1959-07-01IBMUnited States16< flyLikely–

Source: Epoch AI notable models [1]; tiers and notes by IQ Metrics

16 How we built the dataset

  1. 01

    Download

    Epoch AI’s notable-models CSV, 1,092 rows and 47 columns, downloaded on 10 November 2026 (CC BY 4.0); we saved the file and its checksum and read the licence from Epoch’s own pages [1] [2].

  2. 02

    Type the animals

    We typed each synapse count from a paper’s abstract or full text with the sentence it comes from, and a script found every sentence in the saved text (2371 checks in all). Neuron counts for the mammals come from our smartest-animals dataset and were re-read in the papers.

  3. 03

    Calculate

    Where only neurons and synapses per neuron exist (cat, macaque, honeybee) the synapse count is neurons times synapses per neuron, shown as a range and labelled an IQ Metrics calculation. Nothing is filled in for a model with no count.

  4. 04

    Compare

    For each animal we found the first row at or above its low and high count, the first real neural network, and the first year with three or more such models; we then counted models per tier and fitted the yearly maximum.

  5. 05

    Publish

    The CSV holds all 1,092 model rows (size empty where Epoch has none), the 11 animals and 2 samples; every figure has its own CSV button.

Read every number with these in mind

  • A parameter is not a synapse and size is not intelligence. This page compares counts; it does not say that any model thinks like any animal.
  • Mammal rows are neocortex only, so they are lower bounds for whole brains; small-animal rows are whole brains or bodies. The synapse counting rules differ between papers.
  • Three of the 11 animal rows are IQ Metrics calculations (honeybee, cat, macaque); the mouse, fly-larva and zebrafish rows rest on one paper each, and the honeybee has no published count at all.
  • Epoch AI’s parameter column mixes confident counts, estimates and rumours (65 of the 728 counts are marked unconfirmed or Speculative) and holds total parameters for sparse models.
  • Three early rows (SB-LM, KN-LM, Support Vector Machines) are counts of n-grams or features, not network weights; we mark them and show results with and without them.
  • 364 of 1092 notable models have no parameter count; the largest models are the least likely to have one. Dates in the table can be filled in by Epoch (36 rows end in -15 or -07-01).
  • The table is Epoch’s choice of notable models and changes daily; this release uses the file of 10 November 2026.

Sources

  1. Epoch AI. Epoch AI: Data on AI models, notable AI models (CSV notable_ai_models.csv, updated 9 November 2026; 1,092 rows, 47 columns). 2026. epoch.ai/data/notable-ai-modelsCC BY 4.0 (Creative Commons Attribution, as linked on Epoch's page); credit Epoch AI
  2. Epoch AI. Epoch AI: AI models documentation (overview, inclusion, records, estimation). 2026. epoch.ai/data/ai-models-documentationCC BY 4.0 (Creative Commons Attribution); credit Epoch AI
  3. Royal Society. White JG, Southgate E, Thomson JN, Brenner S: The structure of the nervous system of the nematode Caenorhabditis elegans. Philosophical Transactions of the Royal Society B 1986;314(1165):1-340 (abstract read). 1986. doi.org/10.1098/rstb.1986.0056Paywalled; abstract (OpenAlex, CC0) read, facts cited
  4. Nature. Witvliet D, Mulcahy B, Mitchell JK, et al.: Connectomes across development reveal principles of brain maturation. Nature 2021;596:257-261 (read in the PMC author manuscript). 2021. doi.org/10.1038/s41586-021-03778-8Publisher licence; PMC author manuscript; facts cited
  5. eLife. Ryan K, Lu Z, Meinertzhagen IA: The CNS connectome of a tadpole larva of Ciona intestinalis (L.) highlights sidedness in the brain of a chordate sibling. eLife 2016;5:e16962. 2016. doi.org/10.7554/eLife.16962CC BY 4.0
  6. eLife. Verasztó C, Jasek S, Gühmann M, et al.: Whole-body connectome of a segmented annelid larva. eLife 2025;13:RP97964 (reviewed preprint 2024). 2025. doi.org/10.7554/eLife.97964CC BY 4.0
  7. Science. Winding M, Pedigo BD, Barnes CL, et al.: The connectome of an insect brain. Science 2023;379:eadd9330 (read in the PMC author manuscript). 2023. doi.org/10.1126/science.add9330CC BY 4.0 (author manuscript)
  8. bioRxiv. Li F, Liu J, Shi C, et al.: Multiplexed neuromodulatory-type-annotated whole-brain EM-reconstruction of larval zebrafish. bioRxiv 2025, doi 10.1101/2025.06.12.659365 (preprint). 2025. doi.org/10.1101/2025.06.12.659365CC BY-NC-ND 4.0 preprint: facts cited only; not peer reviewed
  9. Nature. Dorkenwald S, Matsliah A, Sterling AR, et al.: Neuronal wiring diagram of an adult brain. Nature 2024;634:124-138. 2024. doi.org/10.1038/s41586-024-07558-yCC BY 4.0
  10. Cell / HHMI Janelia Research Campus. Berg S, Nern A, Preibisch S, et al.: Sexual dimorphism in the complete Drosophila male central nervous system connectome. Cell 2026;189(18):5504-5526, doi 10.1016/j.cell.2026.08.015 (abstract on the HHMI Janelia publication page; counts in the bioRxiv preprint 10.1101/2025.10.09.680999). 2026. doi.org/10.1016/j.cell.2026.08.015CC BY 4.0 (Crossref licence record); preprint CC BY 4.0
  11. Nature. MICrONS Consortium: Functional connectomics spanning multiple areas of mouse visual cortex. Nature 2025;640:435-447. 2025. doi.org/10.1038/s41586-025-08790-wCC BY 4.0
  12. Science. Shapson-Coe A, Januszewski M, Berger DR, et al.: A petavoxel fragment of human cerebral cortex reconstructed at nanoscale resolution. Science 2024;384:eadk4858. 2024. doi.org/10.1126/science.adk4858Abstract (OpenAlex, CC0) and PMC author manuscript read; facts cited
  13. Wiley. Schuz A, Palm G: Density of neurons and synapses in the cerebral cortex of the mouse. Journal of Comparative Neurology 1989;286(4):442-455. 1989. doi.org/10.1002/cne.902860404Publisher copyright: abstract read (PubMed); facts cited only
  14. Wiley. Tang Y, Nyengaard JR, De Groot DMG, Gundersen HJG: Total regional and global number of synapses in the human brain neocortex. Synapse 2001;41(3):258-273. 2001. doi.org/10.1002/syn.1083Publisher copyright: abstract read (PubMed); facts cited only
  15. Elsevier. Pakkenberg B, Pelvig D, Marner L, et al.: Aging and the human neocortex. Experimental Gerontology 2003;38(1-2):95-99. 2003. doi.org/10.1016/s0531-5565(02)00151-1Publisher copyright: abstract read (PubMed); facts cited only
  16. Wiley. Beaulieu C, Colonnier M: Number and size of neurons and synapses in the motor cortex of cats raised in different environmental complexities. Journal of Comparative Neurology 1989;289(1):178-181. 1989. doi.org/10.1002/cne.902890115Publisher copyright: abstract read (PubMed); facts cited only
  17. Oxford University Press. Beaulieu C, Kisvarday Z, Somogyi P, Cynader M, Cowey A: Quantitative distribution of GABA-immunopositive and -immunonegative neurons and synapses in the monkey striate cortex (area 17). Cerebral Cortex 1992;2(4):295-309. 1992. doi.org/10.1093/cercor/2.4.295Publisher copyright: abstract read (PubMed); facts cited only
  18. Wiley. Azevedo FAC, Carvalho LRB, Grinberg LT, et al.: Equal numbers of neuronal and nonneuronal cells make the human brain an isometrically scaled-up primate brain. Journal of Comparative Neurology 2009;513(5):532-541. 2009. doi.org/10.1002/cne.21974Publisher copyright: abstract read (PubMed); facts cited only
  19. Frontiers. Jardim-Messeder D, et al.: Dogs have the most neurons, though not the largest brain: trade-off between body mass and number of neurons in the cerebral cortex of large carnivoran species. Frontiers in Neuroanatomy 2017;11:118. 2017. doi.org/10.3389/fnana.2017.00118CC BY 4.0
  20. Karger. Gabi M, et al.: Cellular scaling rules for the brains of an extended number of primate species. Brain, Behavior and Evolution 2010;76(1):32-44. 2010. doi.org/10.1159/000319872Publisher copyright (PMC author manuscript): table values cited as facts
  21. MDPI. Bava DM, et al.: Honeybee sentience: scientific evidence and implications for EU animal welfare policy. Veterinary Sciences 2025;12:661. 2025. doi.org/10.3390/vetsci12070661Open access (MDPI); one sentence cited as a fact
  22. Springer. Paoli M, et al.: Olfactory coding in honeybees. Cell and Tissue Research 2021;383:35-58. 2021. doi.org/10.1007/s00441-020-03385-5Open access (PMC); one sentence cited as a fact
  23. MDPI. Groh C, et al.: Analysis of synaptic microcircuits in the mushroom bodies of the honeybee. Insects 2020;11(1):43. 2020. doi.org/10.3390/insects11010043Open access (MDPI); two sentences cited as facts
  24. Cell Press. Beniaguev D, Segev I, London M: Single cortical neurons as deep artificial neural networks. Neuron 2021;109(17):2727-2739. 2021. doi.org/10.1016/j.neuron.2021.07.002Publisher copyright: abstract read (PubMed); facts cited only

Version history

  • 2026.1110 November 2026First release. Next update due May 2027 (Epoch AI updates its table daily; we re-run twice a year as new frontier models appear), sooner if a paper counts the synapses of a new brain or a lab publishes the size of a frontier model.
Leon Falkner

Leon Falkner, Data & Research Analyst. Leon owns the arithmetic on IQ Metrics: the percentile tables, the score converter and the figures in everyone else's drafts. On the research desk Leon pulls the data, builds each index and writes the method. More about Leon.

Questions

How big is AI compared to the human brain?

The largest AI model with a published size has about 3 trillion parameters; a human neocortex has 150 to 164 trillion synapses, 50 to 55 times more. A parameter is not a synapse, so the comparison is of size only (IQ Metrics Research, Epoch AI data, November 2026).

How many parameters does GPT-4 have?

OpenAI has never published it. Epoch AI lists 1.8 trillion for GPT-4 (2023) as a rumoured figure with a confidence of "Likely", a mixture-of-experts design using about 280 billion parameters at once. GPT-3, in 2020, had 174.6 billion.

How many parameters does ChatGPT have?

Not published. ChatGPT is a product built on OpenAI models whose sizes are not disclosed; Epoch AI's row for GPT-3.5 Turbo lists 20 billion, taken from a Microsoft paper, and its GPT-4 rows list a rumoured 1.8 trillion.

How many synapses are in the human brain?

Nobody has counted the whole brain. The human neocortex holds about 150 to 164 trillion synapses (0.15 quadrillion), counted by stereology in five young men; the cerebellum and deep structures are not included, so the whole brain has more.

How many neurons does the human brain have?

About 86.1 billion, with 19% (around 16 billion) in the cerebral cortex, counted in four adult men by dissolving the brains and counting nuclei (Azevedo et al. 2009). The older figure of 100 billion was never a count.

Is a parameter the same as a synapse?

No. A parameter is one stored number in a model; a synapse is a changing physical contact between neurons. One simulated cortical neuron needed a five- to eight-layer artificial network to copy, so the match is loose.

Which animal is the biggest AI model equal to?

A cat. The largest published model, 3 trillion parameters, is above the 2.2 to 2.4 trillion synapses of a cat neocortex and about 4% under the low estimate for a macaque (3.1 trillion). It is 50 times under a human neocortex.

How many synapses does a fruit fly or a honeybee have?

An adult fruit fly has 54.5 million synapses (up to 312 million postsynaptic sites by another count). A honeybee has about one million neurons but no published synapse count; our bracket is 391 million to 8.2 billion.

When will AI be as big as a human brain?

No one can say. If the 2018-2025 trend continued, the largest model would reach 150 trillion parameters around 2030; the flatter 2021-2026 trend says far later. Both are arithmetic, not forecasts, and size alone does not make a brain.

Does a bigger AI model mean a smarter one?

Not by itself. Parameters, training data and methods all matter, and a score on a test built for people is not an IQ. Size is one count; see our pages on the ChatGPT IQ score and on why a model's "120" is not an IQ.

Use the data

Share it, cite it, download it

You may reuse everything on this page under CC BY 4.0: in articles, reports, lessons and posts. The one condition is credit to IQ Metrics with a link to this page.

Cite this study

Version 2026.11. Citing the version lets readers find the exact numbers.

Archived copy with a DOI: 10.5281/zenodo.24098407 (report PDF and data on Zenodo).

Falkner, L. (2026). How big is AI compared with a brain? 1,092 models against 11 animals (Version 2026.11) [Data set]. IQ Metrics Research. https://iqmetrics.org/research/how-big-is-ai-compared-to-a-brain/ (DOI: 10.5281/zenodo.24098407)

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Get the data

One row per notable AI model in Epoch AI’s table (1,092 rows, row_type model; size empty where Epoch has no parameter count), one row per animal (11 rows, row_type animal, low and high synapse count) and one row per one-cubic-millimetre sample (2 rows). Model data: Epoch AI, CC BY 4.0, downloaded 10 November 2026. Animal data: primary papers, with the sentence read; IQ Metrics calculations are labelled.

Download CSV
Data dictionary
ColumnWhat it holds
row_type, namemodel, animal or sample; the model or animal name
publication_dateEpoch AI publication date (day 15 or July 1 can be filled in by Epoch when the exact date is unknown)
organization, developer_countries, developer_sectorDeveloping organisation(s) as Epoch lists them; their countries without duplicates; Industry, Academia, Mixed or other, Not stated
domainEpoch AI domain(s), for example Language, Vision, Biology
count_kind, count_low, count_highparameters (models) or synapses (animals); low and high count (equal for a single count)
epoch_confidence, epoch_parameters_noteEpoch AI confidence label (Confident, Likely, Speculative, Unknown) and its note, shortened to 300 characters; the adjective Epoch puts before "parameters" in quoted sentences is dropped
mixture_of_experts_note, unconfirmed_figure, not_a_neural_networkIQ Metrics flags: the note mentions sparse, active or mixture of experts; rumoured or Speculative count; n-gram or feature count (3 rows)
size_tierThe animal the model has reached: below a fruit fly, fruit fly to honeybee, honeybee to mouse, mouse to cat, cat or more
training_compute_flopEpoch AI training-compute estimate, floating-point operations
neurons, scope, basisAnimals: neurons counted for the same part; what the synapses cover; counted or calculated
first_model_at_or_above_low, first_model_at_or_above_highAnimals: the first notable model (date) with a parameter count at or above the low and the high synapse count
source_ids, link, licenceSource ids of the page's reference list; Epoch link to each model's source; licence of the data

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IQ Metrics Research put all 1,092 notable AI models in Epoch AI's table (1950 to 28 October 2026) on the same scale as the synapses of 11 animals, using primary papers for the animals. The largest model with a published size has 3 trillion parameters, about level with a cat neocortex (2.2 to 2.4 trillion synapses) and 50 to 55 times under a human neocortex (150 to 164 trillion). 379 of 728 models with a count are at least as big as our low honeybee estimate, 128 are above a mouse neocortex. A parameter is not a synapse and size is not ability. Source: IQ Metrics Research, https://iqmetrics.org/research/how-big-is-ai-compared-to-a-brain/

Angles for a story

  • The biggest AI model with a published size is cat-sized, not human-sized: 3 trillion against 2.2 trillion and 150 trillion (Figure 1)
  • AI passed a roundworm in 1975 and a cat in 2025: the year of each rung (Figure 3)
  • The sizes labs leave out: 41% of 2026 models have a published size, 92% in 2021 (Figure 11)
  • A trillion stored, a few tens of billions used: the sparse-model illusion (Figure 10)
  • Growth stalled: the largest model doubled every 1.2 years, then barely moved after 2021 (Figure 9)
  • Who builds the big models: China’s developers on 60 of the 128 models above a mouse (Figure 14)

Quotes you can use

Attributable as written, with the name and title. For a different angle or a quote on a specific figure, ask through the contact page.

  • The biggest AI model we can put a number on is about the size of a cat’s cortex. The distance to a human cortex is fifty-fold, and nobody knows how big the models that labs keep secret really are.

    Leon Falkner, Data & Research Analyst, IQ Metrics Research
  • A trillion parameters is not a trillion working connections. Most trillion-parameter models use three to sixteen per cent of themselves at a time, so we always say total or active.

    Leon Falkner, Data & Research Analyst, IQ Metrics Research
  • We compare counts, not minds. A honeybee does more with its brain than its synapse count suggests, and no number on this page says any model thinks like an animal.

    Leon Falkner, Data & Research Analyst, IQ Metrics Research

Files

  • CSV of every model and animal: 1,092 Epoch AI rows with size, developer, country, sector, confidence, sparse flag and tier, plus 11 animals and 2 samples with low and high synapse counts, sources and the first model above each (CC BY 4.0)
  • Every figure as a print-ready PNG: use the Image button under each figure
  • Embed code and data table under every figure
  • Share images for social media in three sizes, with the credit line built in
  • Citations in APA, MLA, Chicago, BibTeX and plain text

Terms, contact and corrections

Credit: “IQ Metrics Research, How big is AI compared with a brain? (2026)” with a link to this page, and “Epoch AI” for the model data (CC BY 4.0). On air or in print, “IQ Metrics” and the page address are enough.

What it covers: notable AI models in Epoch AI’s table with a parameter count, 1950-2026, and synapse counts of 11 animals from primary papers; it compares size only.

Contact: the research team, through the contact page. Corrections are made on this page with a dated note in the version history.

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