The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Open-weight biology models from United States of America

16

Models

14 organisations

100%

Open weights

16 open, 0 closed

0

Frontier

By Epoch's flag

25B

Largest traceable

GenSLM

2020–2024

Span

7 with a traceable size

Releases

by year

Records

16
Open-weight biology models from United States of America, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
CHAI-1Chai discovery2024-10Open
AlphaFold 3Google DeepMind2024-05Open
RoseTTAFold All-Atom (RFAA)University of Washington2023-10Open
PeptideBERTCarnegie Mellon University (CMU)2023-08Open
HyenaDNAStanford University2023-067MOpen
ProteinDTUniversity of California (UC) Berkeley2023-02Open
Nucleotide TransformerNVIDIA2023-013B *Open
DiffDockMassachusetts Institute of Technology (MIT)2022-1020M *Open
GenSLMUniversity of Chicago2022-1025BOpen
ESM2-15BMeta AI2022-0715BOpen
ProGen2-xlargeSalesforce Research2022-066BOpen
AlphaFold-MultimerGoogle DeepMind2021-10Open
DNABERTNortheastern University2021-08110MOpen
MSA TransformerFacebook AI Research2021-02100M *Open
ESM1bFacebook AI Research2020-12652MOpen
ProBERTaUniversity of Illinois Urbana-Champaign (UIUC)2020-0944MOpen

An asterisk marks a parameter figure the source does not consider traceable to the people who built the model. That judgement is the source’s and it has false negatives: Kimi K3 is marked speculative at 2.8T while Moonshot’s own model card states the figure. Why that distinction carries the whole exhibit.

Counts are of models Epoch AI records as notable, not of every model released. The most recent month is always incomplete, because a model enters the dataset when it is reviewed rather than when it ships.

Epoch AI, 'Data on AI Models'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/data/ai-models-documentation' Used under CC BY 4.0.

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