The Rational ModerateSearch

Data

AI progress

These charts track measurable capabilities on specific tests and the computing used to train models. They are not a measure of general intelligence, and they do not forecast what comes next.

Data retrieved . Each chart gives the date its data runs through.

Training compute of notable models

Training compute is the number of calculations (floating-point operations, or FLOP) used to train a model. Each point is one model from Epoch AI's database of notable models: those that improved on a recognized benchmark, are highly cited, are historically significant, or are widely used. It is a curated list, not every model.

The vertical axis is a log scale: each gridline is 10 times the one below. A straight line on this scale means growth by the same multiple each year, not by the same amount.

Training compute of notable AI models, log scale

540 of the 1,072 models in Epoch's file have a training compute figure; only those are shown. Developers often do not report compute, so many figures are Epoch's own estimates: the fill of each point shows Epoch's confidence in it. Rings mark models tied to milestones below.

Epoch's confidence:ConfidentLikelySpeculative
1031061091012101510181021102410271960198020002020AlexNetAlphaGo LeeTransformerGPT-3DeepSeek-R1

Epoch's confidence:ConfidentLikelySpeculative
10141016101810201022102410261028201520202025AlexNetAlphaGo LeeTransformerGPT-3DeepSeek-R1

10141016101810201022102410261028201520202025AlexNetAlphaGo LeeTransformerGPT-3DeepSeek-R1

Data table
The 3 models with the most training compute in each year: 108 of 540. The CSV lists all of them.
YearModelOrganizationDomainTraining compute (FLOP)Epoch's confidence
1950TheseusBell LaboratoriesRobotics and other40Confident
1957Perceptron Mark ICornell Aeronautical Laboratory, Cornell UniversityRobotics and other6.9 × 10⁵Likely
1959Pandemonium (morse)Massachusetts Institute of Technology (MIT)Language6.0 × 10⁸Speculative
1959Samuel Neural CheckersIBMGames4.3 × 10⁸Likely
1960Perceptron (1960)Cornell Aeronautical LaboratoryVision, images and video7.2 × 10⁸Speculative
1960ADALINEStanford UniversityVision, images and video6.6 × 10³Confident
1962Linear Decision FunctionsBell LaboratoriesBiology and other sciences1.6 × 10⁶Speculative
1963Print Recognition LogicIBMVision, images and video2.3 × 10⁷Speculative
1965Heuristic Reinforcement LearningPurdue UniversityRobotics and other1.1 × 10⁶Speculative
1966LTE speaker verification systemIBMSpeech and audio1.1 × 10⁸Likely
1975CognitronBiological CyberneticsRobotics and other5.2 × 10⁶Confident
1980NeocognitronNHK Broadcasting Science Research LaboratoriesVision, images and video2.7 × 10⁸Confident
1983ASE+ACEUniversity of Massachusetts AmherstRobotics and other3.2 × 10⁸Likely
1986MLP with back-propagationUniversity of California San Diego, Carnegie Mellon University (CMU)Biology and other sciences6.7 × 10⁸Confident
1986Distributed representation NNCarnegie Mellon University (CMU)Robotics and other3.9 × 10⁸Confident
1987NetTalk (transcription)Princeton UniversitySpeech and audio2.8 × 10¹⁰Confident
1987NetTalk (dictionary)Princeton UniversitySpeech and audio2.8 × 10¹⁰Confident
1987Translation-invariant MLPCarnegie Mellon University (CMU)Robotics and other1.8 × 10¹⁰Confident
1988MLN-ASRMcGill UniversitySpeech and audio3.0 × 10⁸Confident
1989Zip CNNAT&T, Bell LaboratoriesVision, images and video1.5 × 10¹²Confident
1989Handwritten digit recognition networkAT&TVision, images and video1.8 × 10¹¹Confident
1989Invariant image recognitionComplutense University of MadridVision, images and video2.7 × 10¹⁰Confident
1990SexNet compressionVision, images and video7.9 × 10¹⁰Confident
1990NETtalk reimplementationOregon State UniversitySpeech and audio3.6 × 10¹⁰Confident
1990Bankruptcy-NNRobotics and other3.1 × 10⁹Confident
1991Weight DecaySpeech and audio7.5 × 10¹⁰Confident
1992TD-GammonIBMGames1.8 × 10¹³Speculative
1992Cancer drug mechanism predictionNational Cancer InstituteBiology and other sciences5.3 × 10⁷Likely
1993Siamese-TDNNBell LaboratoriesVision, images and video1.3 × 10¹³Likely
1993ANN Eye TrackerVision, images and video1.8 × 10¹⁰Confident
1994Predictive Coding NNTechnical University of MunichLanguage1.9 × 10¹³Confident
1994NeuroChessGames8.6 × 10¹¹Speculative
1994Mixture of linear modelsVision, images and video4.5 × 10¹¹Likely
1995LISSOMUniversity of Texas at AustinVision, images and video2.0 × 10¹¹Likely
1996MUSIC perceptronVision, images and video8.8 × 10¹¹Confident
1996System 11Carnegie Mellon University (CMU)Vision, images and video2.6 × 10¹⁰Confident
1997LSTMTechnical University of MunichLanguage3.2 × 10¹³Confident
1997SOM-CNNVision, images and video3.1 × 10¹⁰Confident
1998LeNet-5AT&TVision, images and video2.8 × 10¹²Confident
1999RECONTRA-categorizedLanguage8.0 × 10¹²Likely
1999RECONTRA-uncategorizedLanguage3.9 × 10¹²Likely
2000Neural LMUniversity of Montreal / Université de MontréalLanguage6.3 × 10¹⁵Confident
2000PoE MNISTUniversity College London (UCL)Vision, images and video5.2 × 10¹³Confident
2001Decision tree (classification)Mitsubishi Electric Research Labs, Compaq CRLVision, images and video6.3 × 10¹³Likely
2003NPLM (AP News)University of Montreal / Université de MontréalLanguage1.7 × 10¹⁵Confident
2003NPLM (Brown)University of Montreal / Université de MontréalLanguage1.3 × 10¹⁴Confident
2004LMICAVision, images and video2.8 × 10¹⁵Confident
2004Invariant CNNNew York University (NYU)Vision, images and video9.7 × 10¹¹Confident
2005Hierarchical LMLanguage1.2 × 10¹⁴Confident
2005RankNetMicrosoft Research, MicrosoftRobotics and other3.5 × 10¹²Confident
2006SVM-CNNNew York University (NYU)Vision, images and video7.5 × 10¹⁴Confident
2007SB-LMGoogleLanguage1.4 × 10¹⁸Likely
2007KN-LMGoogleLanguage7.7 × 10¹⁷Likely
2008GNNUniversity of SienaRobotics and other1.6 × 10⁹Confident
2009LCNP MNISTVision, images and video4.2 × 10¹⁵Confident
2009LCNP LabelMeUniversity of BonnVision, images and video3.3 × 10¹⁵Confident
2009LCNP NORBVision, images and video2.5 × 10¹⁵Confident
2010RNN LMJohns Hopkins UniversityLanguage5.4 × 10¹⁶Speculative
2010Pooling CNN (NORB)University of BonnVision, images and video1.5 × 10¹⁵Confident
2010Pooling CNN (Caltech 101)University of BonnVision, images and video1.2 × 10¹⁵Confident
2011CNN Committee (MNIST)IDSIAVision, images and video5.2 × 10¹⁶Likely
2011Deep AutoencodersUniversity of TorontoVision, images and video3.7 × 10¹⁶Confident
2011CNN Committee (NIST)IDSIAVision, images and video2.6 × 10¹⁶Likely
2012Unsupervised High-level Feature LearnerGoogleVision, images and video6.0 × 10¹⁷Likely
2012DNN EM segmentationIDSIA, SUPSIVision, images and video4.8 × 10¹⁷Confident
2012AlexNetUniversity of TorontoVision, images and video4.7 × 10¹⁷Confident
2013DistBelief NNLMGoogleLanguage2.6 × 10¹⁸Likely
2013TransEUniversite de Technologie de Compiègne – CNRS, GoogleLanguage1.3 × 10¹⁸Speculative
2013Visualizing CNNsNew York University (NYU)Vision, images and video5.3 × 10¹⁷Confident
2014SNM-skipGoogleLanguage3.0 × 10²⁰Speculative
2014Seq2Seq LSTMGoogleLanguage5.6 × 10¹⁹Confident
2014VGG16University of OxfordVision, images and video1.2 × 10¹⁹Confident
2015AlphaGo FanDeepMindGames3.8 × 10²⁰Likely
2015Inception v3Google, University College London (UCL)Vision, images and video1.0 × 10²⁰Likely
2015MSRA (C, PReLU)Microsoft ResearchVision, images and video2.4 × 10¹⁹Confident
2016GNMTGoogleLanguage6.6 × 10²¹Likely
2016NASv3 (CIFAR-10)Google BrainVision, images and video2.2 × 10²¹Likely
2016AlphaGo LeeDeepMindGames1.9 × 10²¹Speculative
2017JFTGoogle Research, Carnegie Mellon University (CMU)Vision, images and video8.4 × 10²⁰Confident
2017AlphaGo ZeroDeepMindGames6.5 × 10²⁰Confident
2017OpenAI TI7 DOTA 1v1OpenAIGames6.0 × 10²⁰Confident
2018ResNeXt-101 32x48dFacebookVision, images and video8.7 × 10²¹Confident
2018Big Transformer for Back-TranslationFacebook AI Research, Google BrainLanguage4.8 × 10²⁰Likely
2018BERT-LargeGoogleLanguage2.9 × 10²⁰Confident
2019AlphaStarDeepMindGames1.1 × 10²³Confident
2019OpenAI FiveOpenAIGames6.7 × 10²²Confident
2019T5-11BGoogleLanguage3.3 × 10²²Confident
2020GPT-3 175B (davinci)OpenAILanguage3.1 × 10²³Confident
2020MeenaGoogle BrainLanguage1.1 × 10²³Confident
2020mT5-XXLGoogle, Google ResearchLanguage8.2 × 10²²Confident
2021FLAN 137BGoogle ResearchLanguage2.0 × 10²⁴Confident
2021ERNIE 3.0 TitanBaidu, Peng Cheng LaboratoryLanguage1.0 × 10²⁴Confident
2021Megatron-Turing NLG 530BMicrosoft, NvidiaLanguage8.6 × 10²³Confident
2022Minerva (540B)GoogleLanguage2.7 × 10²⁴Confident
2022GPT-3.5 (davinci-002)OpenAILanguage2.6 × 10²⁴Speculative
2022Flan-PaLM 540BGoogleLanguage2.5 × 10²⁴Confident
2023Gemini 1.0 UltraGoogle DeepMindMultimodal5.0 × 10²⁵Speculative
2023GPT-4 (Jun 2023)OpenAIMultimodal2.1 × 10²⁵Likely
2023GPT-4 (Mar 2023)OpenAIMultimodal2.1 × 10²⁵Likely
2024Llama 3.1-405BMeta AILanguage3.8 × 10²⁵Confident
2024Grok-2xAIMultimodal3.0 × 10²⁵Confident
2024Claude 3.5 SonnetAnthropicMultimodal2.7 × 10²⁵Speculative
2025Grok 4xAIMultimodal5.0 × 10²⁶Speculative
2025GPT-4.5OpenAIMultimodal3.8 × 10²⁶Likely
2025Grok 3xAIMultimodal3.5 × 10²⁶Likely
2026GPT-6 AstraOpenAIMultimodal1.0 × 10²⁷Likely
2026Composer 2.5CursorLanguage3.9 × 10²⁵Likely
2026Composer 2CursorLanguage2.3 × 10²⁵Confident

Source: Epoch AI, Data on AI models. notable_ai_models.csv · retrieved Sept. 26, 2026 · 540 rows · as of September 2026 · monthly. Download CSV

Benchmark scores Epoch AI ran itself

Every score here is Epoch AI's own evaluation, not a score reported by the company that built the model. Each chart shows one benchmark: a light point for each Epoch run, placed at the model's release date, and a step line for the best score to date. The line stops at the latest model Epoch has evaluated; it is not a projection.

Recent months are thinner than on Epoch's own site: a run is included only when Epoch's evaluation log for it is published, so 101 runs in Epoch's files for these benchmarks are not shown. As a rule of thumb this page uses, not a formal test, a step smaller than about two standard errors (given in each point's readout and the CSV) may be noise.

GPQA Diamond: best score to date

198 multiple-choice questions in biology, physics and chemistry, written by experts to be hard to answer by searching the web. Random guessing scores 25%.

0%20%40%60%80%100%2023202420252026Expert validators, 81.3% (see caveat)

0%20%40%60%80%100%2023202420252026Expert validators, 81.3% (see caveat)

Caveat. The expert line is the figure from the benchmark’s paper (81.3%), whose authors say validator accuracies on this set "are skewed by selection effects": the set keeps "only questions where both experts answer correctly and the majority of non-experts answer incorrectly." With 198 questions, a difference of a few points between two runs is noise. The benchmark is near saturation.

Data table
GPQA Diamond: each time the best Epoch-run score rose, newest first. The runs CSV (281 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2026-02-19gemini-3.1-pro-preview_highGoogle DeepMind94.4%92.6% (gemini-3-pro-preview)
2025-11-18gemini-3-pro-previewGoogle DeepMind92.6%87.6% (gpt-5.1-2025-11-13_high)
2025-11-13gpt-5.1-2025-11-13_highOpenAI87.6%86.2% (gpt-5-2025-08-07_high)
2025-08-07gpt-5-2025-08-07_highOpenAI86.2%85.3% (gemini-2.5-pro)
2025-06-17gemini-2.5-proGoogle DeepMind85.3%84.8% (gemini-2.5-pro-preview-06-05)
2025-06-05gemini-2.5-pro-preview-06-05Google DeepMind84.8%83.8% (gemini-2.5-pro-exp-03-25)
2025-03-25gemini-2.5-pro-exp-03-25Google DeepMind83.8%79.7% (claude-3-7-sonnet-20250219_64K)
2025-02-24claude-3-7-sonnet-20250219_64KAnthropic79.7%77.0% (o3-mini-2025-01-31_high)
2025-01-31o3-mini-2025-01-31_highOpenAI77.0%76.8% (o1-2024-12-17_high)
2024-12-17o1-2024-12-17_highOpenAI76.8%62.4% (o1-mini-2024-09-12_high)
2024-09-12o1-mini-2024-09-12_highOpenAI62.4%54.0% (claude-3-5-sonnet-20240620)
2024-06-20claude-3-5-sonnet-20240620Anthropic54.0%48.9% (gpt-4o-2024-05-13)
2024-05-13gpt-4o-2024-05-13OpenAI48.9%47.2% (claude-3-opus-20240229)
2024-02-29claude-3-opus-20240229Anthropic47.2%42.4% (gpt-4-1106-preview)
2023-11-06gpt-4-1106-previewOpenAI42.4%35.7% (gpt-4-0314)
2023-03-14gpt-4-0314OpenAI35.7%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

FrontierMath, Tiers 1 to 3: best score to date

The benchmark's 2024 paper describes hundreds of original, unpublished math problems written and checked by mathematicians, a typical one taking a researcher in the field hours. No human score is reported. The chart shows Epoch's second version of this set, "FrontierMath-Tiers-1-3-v2-Private", which Epoch's metadata dates June 12, 2026: newer than the 2024 paper, which describes the original set.

0%20%40%60%80%100%2023202420252026

0%20%40%60%80%100%2023202420252026

Caveat. OpenAI commissioned and funded FrontierMath. In January 2025, Epoch said OpenAI had access to most of the problems in the original set and their solutions, apart from a holdout set. The problems are private, so outside researchers cannot check them.

Data table
FrontierMath, Tiers 1 to 3: each time the best Epoch-run score rose, newest first. The runs CSV (91 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2026-07-09gpt-5.6-sol_maxOpenAI89.1%87.0% (claude-fable-5_max)
2026-06-09claude-fable-5_maxAnthropic87.0%82.5% (gpt-5.4-pro-2026-03-05_xhigh)
2026-03-05gpt-5.4-pro-2026-03-05_xhighOpenAI82.5%66.0% (claude-opus-4-6_max)
2026-02-05claude-opus-4-6_maxAnthropic66.0%55.8% (gpt-5-pro-2025-10-06_high)
2025-10-07gpt-5-pro-2025-10-06_highOpenAI55.8%46.7% (gpt-5-mini-2025-08-07_high)
2025-08-07gpt-5-mini-2025-08-07_highOpenAI46.7%36.1% (o4-mini-2025-04-16_high)
2025-04-16o4-mini-2025-04-16_highOpenAI36.1%18.6% (o3-mini-2025-01-31_high)
2025-01-31o3-mini-2025-01-31_highOpenAI18.6%14.7% (o1-2024-12-17_high)
2024-12-17o1-2024-12-17_highOpenAI14.7%0.7% (gpt-4-turbo-2024-04-09)
2024-04-09gpt-4-turbo-2024-04-09OpenAI0.7%0.0% (gpt-3.5-turbo-0125)
2024-01-25gpt-3.5-turbo-0125OpenAI0.0%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

FrontierMath, Tier 4: best score to date

FrontierMath’s Tier 4, scored separately from Tiers 1 to 3. No human score is reported. The chart shows Epoch's second version of this set, "FrontierMath-Tier-4-v2-Private", which Epoch's metadata dates June 12, 2026: newer than the 2024 paper, which describes the original set.

0%20%40%60%80%100%2023202420252026

0%20%40%60%80%100%2023202420252026

Caveat. As for Tiers 1 to 3: OpenAI commissioned and funded FrontierMath. In January 2025, Epoch said OpenAI had access to most of the problems in the original set and their solutions, apart from a holdout set. The problems are private, so outside researchers cannot check them.

Data table
FrontierMath, Tier 4: each time the best Epoch-run score rose, newest first. The runs CSV (43 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2026-06-09claude-fable-5_maxAnthropic90.2%58.5% (gpt-5.4-pro-2026-03-05_xhigh)
2026-03-05gpt-5.4-pro-2026-03-05_xhighOpenAI58.5%26.8% (claude-opus-4-6_max)
2026-02-05claude-opus-4-6_maxAnthropic26.8%19.5% (gpt-5-pro-2025-10-06_high)
2025-10-07gpt-5-pro-2025-10-06_highOpenAI19.5%12.2% (gpt-5-mini-2025-08-07_high)
2025-08-07gpt-5-mini-2025-08-07_highOpenAI12.2%4.9% (o4-mini-2025-04-16_high)
2025-04-16o4-mini-2025-04-16_highOpenAI4.9%0.0% (o3-mini-2025-01-31_high)
2025-01-31o3-mini-2025-01-31_highOpenAI0.0%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

SWE-bench Verified: best score to date

Real issues from GitHub projects written in Python: the model edits the code, and the project’s tests decide whether the fix works. Epoch runs 484 of the 500 tasks. No human baseline is reported.

0%20%40%60%80%100%2023202420252026

0%20%40%60%80%100%2023202420252026

Caveat. Epoch notes that some tasks may remain ambiguous and has estimated an error rate of 5 to 10%. OpenAI, which published SWE-bench Verified, said in February 2026 that it had stopped reporting scores on it: in an audit of 138 problems its o3 model did not consistently solve, it found that 59.4% had material issues in test design or problem description, and it reported signs that every frontier model it tested had seen at least some of the problems and solutions during training. In a separate METR study of an AI agent’s pull requests for tasks from two open-source projects, not SWE-bench, none of the 15 that METR reviewed by hand was mergeable as-is, including those that passed the projects’ own tests.

Data table
SWE-bench Verified: each time the best Epoch-run score rose, newest first. The runs CSV (34 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2026-04-16claude-opus-4-7_maxAnthropic83.5%78.7% (claude-opus-4-6)
2026-02-05claude-opus-4-6Anthropic78.7%76.7% (claude-opus-4-5-20251101)
2025-11-24claude-opus-4-5-20251101Anthropic76.7%73.6% (gpt-5-2025-08-07_high)
2025-08-07gpt-5-2025-08-07_highOpenAI73.6%73.3% (claude-opus-4-1-20250805)
2025-08-05claude-opus-4-1-20250805Anthropic73.3%70.7% (claude-opus-4-20250514)
2025-05-22claude-opus-4-20250514Anthropic70.7%62.3% (o3-2025-04-16_medium)
2025-04-16o3-2025-04-16_mediumOpenAI62.3%61.0% (claude-3-7-sonnet-20250219)
2025-02-24claude-3-7-sonnet-20250219Anthropic61.0%31.0% (gpt-4o-2024-11-20)
2024-11-20gpt-4o-2024-11-20OpenAI31.0%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

MATH Level 5: best score to date

A benchmark Epoch AI runs itself, listed as "MATH level 5" on Epoch's benchmarking hub (epoch.ai/benchmarks).

0%20%40%60%80%100%2023202420252026

0%20%40%60%80%100%2023202420252026

Caveat. Top scores are near the ceiling: shown for its history, not to rank current models.

Data table
MATH Level 5: each time the best Epoch-run score rose, newest first. The runs CSV (108 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2025-08-07gpt-5-2025-08-07_highOpenAI98.1%97.8% (o4-mini-2025-04-16_high)
2025-04-16o4-mini-2025-04-16_highOpenAI97.8%96.5% (o3-mini-2025-01-31_high)
2025-01-31o3-mini-2025-01-31_highOpenAI96.5%94.7% (o1-2024-12-17_high)
2024-12-17o1-2024-12-17_highOpenAI94.7%89.2% (o1-mini-2024-09-12_high)
2024-09-12o1-mini-2024-09-12_highOpenAI89.2%53.3% (gpt-4o-2024-08-06)
2024-08-06gpt-4o-2024-08-06OpenAI53.3%52.6% (gpt-4o-mini-2024-07-18)
2024-07-18gpt-4o-mini-2024-07-18OpenAI52.6%51.7% (claude-3-5-sonnet-20240620)
2024-06-20claude-3-5-sonnet-20240620Anthropic51.7%51.0% (gpt-4o-2024-05-13)
2024-05-13gpt-4o-2024-05-13OpenAI51.0%46.7% (gpt-4-turbo-2024-04-09)
2024-04-09gpt-4-turbo-2024-04-09OpenAI46.7%40.0% (gpt-4-1106-preview)
2023-11-06gpt-4-1106-previewOpenAI40.0%23.0% (gpt-4-0613)
2023-06-13gpt-4-0613OpenAI23.0%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

OTIS Mock AIME 2024-2025: best score to date

A benchmark Epoch AI runs itself, listed as "OTIS Mock AIME 2024-2025" on Epoch's benchmarking hub (epoch.ai/benchmarks).

0%20%40%60%80%100%2023202420252026

0%20%40%60%80%100%2023202420252026

Caveat. Several models score 100% in Epoch’s runs: shown for its history, not to rank current models.

Data table
OTIS Mock AIME 2024-2025: each time the best Epoch-run score rose, newest first. The runs CSV (257 runs for this benchmark) is linked under Sources.
Model releasedModelOrganizationBest score to datePrevious best
2026-04-23gpt-5.5-pre-release_xhighOpenAI100.0%97.8% (claude-opus-4-7_xhigh)
2026-04-16claude-opus-4-7_xhighAnthropic97.8%97.8% (gpt-5.4-2026-03-05_high)
2026-03-05gpt-5.4-2026-03-05_highOpenAI97.8%96.1% (gpt-5.2-2025-12-11_high)
2025-12-11gpt-5.2-2025-12-11_highOpenAI96.1%91.4% (gpt-5-2025-08-07_high)
2025-08-07gpt-5-2025-08-07_highOpenAI91.4%88.9% (openai/gpt-oss-120b_high)
2025-08-05openai/gpt-oss-120b_highOpenAI88.9%86.7% (Qwen3-235B-A22B-Thinking-2507)
2025-07-25Qwen3-235B-A22B-Thinking-2507Alibaba86.7%84.7% (gemini-2.5-pro)
2025-06-17gemini-2.5-proGoogle DeepMind84.7%84.4% (o3-2025-04-16_medium)
2025-04-16o3-2025-04-16_mediumOpenAI84.4%77.8% (grok-3-mini-beta_high)
2025-04-09grok-3-mini-beta_highxAI77.8%76.9% (o3-mini-2025-01-31_high)
2025-01-31o3-mini-2025-01-31_highOpenAI76.9%73.3% (o1-2024-12-17_high)
2024-12-17o1-2024-12-17_highOpenAI73.3%46.9% (o1-mini-2024-09-12_high)
2024-09-12o1-mini-2024-09-12_highOpenAI46.9%9.7% (Llama-3.1-405B-Instruct)
2024-07-23Llama-3.1-405B-InstructMeta AI9.7%6.9% (gpt-4o-mini-2024-07-18)
2024-07-18gpt-4o-mini-2024-07-18OpenAI6.9%6.8% (gemini-1.5-pro-001)
2024-05-14gemini-1.5-pro-001Google DeepMind6.8%6.7% (gpt-4-turbo-2024-04-09)
2024-04-09gpt-4-turbo-2024-04-09OpenAI6.7%4.7% (claude-3-opus-20240229)
2024-02-29claude-3-opus-20240229Anthropic4.7%2.5% (claude-2.0)
2023-07-11claude-2.0Anthropic2.5%1.1% (gpt-4-0613)
2023-06-13gpt-4-0613OpenAI1.1%0.6% (gpt-4-0314)
2023-03-14gpt-4-0314OpenAI0.6%First run

Source: Epoch AI, AI Benchmarking Hub. computed from epoch-benchmarks.csv · retrieved Sept. 26, 2026 · 93 rows · as of August 2026 · monthly. Download CSV

Share of U.S. businesses using AI

The Census Bureau's Business Trends and Outlook Survey asks businesses every two weeks whether they used AI in the previous two weeks. In November 2025 the Census Bureau changed the question's wording and, because of the shift in answers that came with it, started a new series. The two lines are separate series and are not comparable; the chart does not join them.

Share of U.S. businesses that used AI in the last two weeks

Percent of responding businesses answering yes, by two-week reference period. The shaded band marks 3 periods with no estimate: the survey was not collected during the federal funding lapse. BTOS is an experimental data product.

0%5%10%15%20%25%202420252026Not collectedNew question

0%5%10%15%20%25%202420252026Not collectedNew question

Where the rule sits. Each point is placed at the last day of the two weeks it describes. The “New question” rule is at the two weeks ending Nov. 16, 2025 (Nov. 3 to 16, 2025), the first period answered with the new wording. Businesses were first asked it on Nov. 17, 2025, when collection for that period began, so the rule sits a day before the wording changed.

Original question, Aug. 28, 2023 to Sept. 21, 2025 (reference periods)
In the last two weeks, did this business use Artificial Intelligence (AI) in producing goods or services? (Examples of AI: machine learning, natural language processing, virtual agents, voice recognition, etc.)
Updated question, asked from Nov. 17, 2025
In the last two weeks, did this business use Artificial Intelligence (AI) in any of its business functions? (Examples of AI: machine learning, natural language processing, virtual agents, voice recognition, etc.)

Why two series. The Census Bureau: Due to a level shift observed in conjunction with the new question wording, the decision was made to create a new time series for the AI questions, beginning with data released on December 4, 2025. In the Census Bureau's testing, some respondents did not see their business as a producer of goods or services, and others answered no while using AI in work such as hiring, accounting or software development.

Data table
Share of businesses answering yes, newest first. The CSV adds standard errors and collection dates.
Two weeks endingPeriod beganOriginal questionUpdated questionNote
2026-09-062026-08-2423.8%
2026-08-232026-08-1023.2%
2026-08-092026-07-2722.4%
2026-07-262026-07-1321.8%
2026-07-122026-06-2921.5%
2026-06-282026-06-1521.7%
2026-06-142026-06-0120.6%
2026-05-312026-05-1820.6%
2026-05-172026-05-0420.6%
2026-05-032026-04-2019.5%
2026-04-192026-04-0619.8%
2026-04-052026-03-2319.8%
2026-03-222026-03-0919.1%
2026-03-082026-02-2318.9%
2026-02-222026-02-0918.2%
2026-02-082026-01-2617.5%
2026-01-252026-01-1218.9%
2026-01-112025-12-2918.2%
2025-12-282025-12-1517.7%
2025-12-142025-12-0117.8%
2025-11-302025-11-1717.2%
2025-11-162025-11-0317.3%
2025-11-022025-10-20No estimate: BTOS did not collect data for this period (federal funding lapse, October 1 to November 13, 2025)
2025-10-192025-10-06No estimate: BTOS did not collect data for this period (federal funding lapse, October 1 to November 13, 2025)
2025-10-052025-09-22No estimate: BTOS did not collect data for this period (federal funding lapse, October 1 to November 13, 2025)
2025-09-212025-09-0810.0%
2025-09-072025-08-259.9%
2025-08-242025-08-119.1%
2025-08-102025-07-289.7%
2025-07-272025-07-148.8%
2025-07-132025-06-309.4%
2025-06-292025-06-169.3%
2025-06-152025-06-029.3%
2025-06-012025-05-199.2%
2025-05-182025-05-059.2%
2025-05-042025-04-218.7%
2025-04-202025-04-078.7%
2025-04-062025-03-248.3%
2025-03-232025-03-108.0%
2025-03-092025-02-247.8%
2025-02-232025-02-107.4%
2025-02-092025-01-277.3%
2025-01-262025-01-136.8%
2025-01-122024-12-306.7%
2024-12-292024-12-166.0%
2024-12-152024-12-026.3%
2024-12-012024-11-186.1%
2024-11-172024-11-046.1%
2024-11-032024-10-216.1%
2024-10-202024-10-076.0%
2024-10-062024-09-236.0%
2024-09-222024-09-096.0%
2024-09-082024-08-265.9%
2024-08-252024-08-125.7%
2024-08-112024-07-295.5%
2024-07-282024-07-155.1%
2024-07-142024-07-015.1%
2024-06-302024-06-175.0%
2024-06-162024-06-034.7%
2024-06-022024-05-205.0%
2024-05-192024-05-064.6%
2024-05-052024-04-224.8%
2024-04-212024-04-084.7%
2024-04-072024-03-254.8%
2024-03-242024-03-114.2%
2024-03-102024-02-264.4%
2024-02-252024-02-124.3%
2024-02-112024-01-295.4%
2024-01-282024-01-155.0%
2024-01-142024-01-015.3%
2023-12-312023-12-184.6%
2023-12-172023-12-044.9%
2023-12-032023-11-204.9%
2023-11-192023-11-064.6%
2023-11-052023-10-234.4%
2023-10-222023-10-093.9%
2023-10-082023-09-253.8%
2023-09-242023-09-113.7%
2023-09-102023-08-283.7%

Source: U.S. Census Bureau, Business Trends and Outlook Survey (BTOS). BTOS question 7, answer Yes, national: National.xlsx (updated wording) and AI Core Questions.xlsx, sheet National Estimates (original wording); standard errors from each file's SE sheet · retrieved Sept. 26, 2026 · 79 rows · as of Sept. 6, 2026 · biweekly. Question wording: BTOS AI Core Question Updates, December 3, 2025. Download CSV

Milestones

Dated events, each with the primary source read for it. The second line of each entry is limited to what that source states. The International Mathematical Olympiad results of 2025 are marked disputed, with each view attributed.

  1. IBM's Deep Blue beat world chess champion Garry Kasparov 3.5 to 2.5 in a six-game rematch in New York.A computer won a match under standard time controls against a reigning world champion.Source: Deep Blue
  2. The SuperVision team (Krizhevsky, Sutskever and Hinton; the network known as AlexNet) won the ILSVRC 2012 ImageNet classification task.Its top-5 error was 0.15315 (with extra ImageNet Fall 2011 data), against 0.26172 for the next team (ISI).Source: ILSVRC2012 results
  3. DeepMind posted "Playing Atari with Deep Reinforcement Learning" (DQN).The authors describe "the first deep learning model to successfully learn control policies directly from high-dimensional sensory input using reinforcement learning," tested on seven Atari games and better than a human expert on three.Source: Playing Atari with Deep Reinforcement Learning
  4. DeepMind's AlphaGo beat Fan Hui 5 to 0 (October 2015), then Lee Sedol 4 to 1 in Seoul (March 2016).DeepMind calls the Fan Hui games "the first ever match between an AI system and Go professional," and AlphaGo received a 9 dan professional ranking.Source: AlphaGo
  5. Vaswani and colleagues at Google posted "Attention Is All You Need".The paper proposed "the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely."Source: Attention Is All You Need
  6. Devlin and colleagues at Google posted BERT.Pre-trained bidirectional representations reached a GLUE score of 80.5% ("7.7% point absolute improvement").Source: BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding
  7. Brown and colleagues at OpenAI posted the GPT-3 paper.The paper describes "an autoregressive language model with 175 billion parameters," tested in the few-shot setting.Source: Language Models are Few-Shot Learners
  8. AlphaFold 2 results at CASP14.The CASP press release says AlphaFold determined "the shape of around two thirds of the proteins with accuracy comparable to laboratory experiments," for "single proteins or domains, not protein complexes."Source: CASP14 press release
  9. Wei and colleagues at Google posted the chain-of-thought prompting paper.The paper reports that "generating a chain of thought -- a series of intermediate reasoning steps -- significantly improves the ability of large language models to perform complex reasoning."Source: Chain-of-Thought Prompting Elicits Reasoning in Large Language Models
  10. DeepSeek posted DeepSeek-R1, an open-weight reasoning model.Reasoning was trained through reinforcement learning; the work was published in Nature 645 (2025).Source: DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning
  11. DisputedAI systems' results on the 2025 International Mathematical Olympiad problems.Google DeepMind reported 35 of 42 points for an advanced version of Gemini Deep Think, with solutions graded and certified by IMO coordinators (Google DeepMind, July 21, 2025). OpenAI published proofs produced by its experimental reasoning model on the 2025 problems. Google DeepMind's post says the certification covers the answers, not the system. Per mathematician Kevin Buzzard's round-up (August 3, 2025), OpenAI's solutions were not graded by IMO coordinators; OpenAI's own announcement was not read for this page, so no OpenAI score is given here. The IMO president said the IMO "cannot validate the methods, including the amount of compute used or whether there was any human involvement, or whether the results can be reproduced. What we can say is that correct mathematical proofs, whether produced by the brightest students or AI models, are valid."Source: The 66th International Mathematical Olympiad draws to a close todayAlso: Google DeepMind's post (July 21, 2025), Kevin Buzzard's round-up (August 3, 2025), OpenAI's published proofs

3 more entries, whose dates could not yet be confirmed from a primary source, are in the milestones file but not shown. The milestones CSV lists each with the reason.

Sources and methods

Epoch AI

The training compute and benchmark data are from Epoch AI and are used under the Creative Commons Attribution 4.0 license. Epoch's attribution:

  • Epoch AI, 'Data on AI models'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/data/ai-models' [online resource].
  • Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks/use-this-data'.

Benchmark runs are kept only when their evaluation log is in Epoch's own evaluation records, so every score on this page is one Epoch ran. The best score to date is computed here from those runs, per benchmark and by model release date; the superseded versions of the FrontierMath sets are left out. Compute figures are as Epoch publishes them, including its estimates; nothing is rounded, filled or fitted, and no trend line is drawn.

SWE-bench Verified caveat

U.S. Census Bureau

Business Trends and Outlook Survey: the updated question from National.xlsx, the original question from AI Core Questions.xlsx, and the wording change from BTOS AI Core Question Updates (December 3, 2025).

What is not here, and why

METR's task time-horizon measurements are left out until METR grants permission to republish them; no license covers that data. ARC Prize's verified ARC-AGI scores are left out because the terms bar commercial republishing without written permission. Humanity's Last Exam is left out because its leaderboard does not state who ran each evaluation and no license for its results was found; FutureHouse, an independent research lab, also estimated from a checked subset that about 29% of its text-only chemistry and biology answers conflict with evidence in peer-reviewed literature. MMLU is left out because it is saturated (the Humanity's Last Exam paper says "LLMs now achieve over 90% accuracy on popular benchmarks like MMLU"), and "Are We Done with MMLU?" (Gema and colleagues) estimated that 6.49% of its questions contain errors; no license for published MMLU results was found. The Stanford AI Index compiles results rather than running tests (it "assumes that company-reported results are accurate"), and the license on its arXiv listing (CC BY-NC-ND 4.0) bars adapted charts. Scores that companies report for their own models are not used anywhere on this page.

The data

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