The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Models from United States of America in 2021

Weightsopenclosedunknownfrontier only
Year20262025202420232022202120202019201820172016
2 filters active, showing 49 of 1,072 recordsClear all

49

Models

20 organisations

57%

Open weights

28 open, 21 closed

3

Frontier

By Epoch's flag

1.6T

Largest traceable

Switch

2021

Span

33 with a traceable size

Releases

by month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Organisation

Country

Domain

Records

49
Models from United States of America in 2021, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
ContrieverMeta AI2021-12110M *Open
GLaMGoogle2021-121.2TClosed
LongT5Google Research2021-123BOpen
T-NLRv5 XXLMicrosoft2021-125BClosed
XGLM-7.5BMeta AI2021-128BOpen
BASIC-LGoogle2021-113B *Closed
CodeT5-baseSalesforce2021-11220M *Open
FlorenceMicrosoft2021-11893MClosed
Masked Autoencoders ViT-HFacebook AI Research2021-11632M *Open
NÜWAMicrosoft Research2021-11870MClosed
ViT-G/14 (LiT)Google Research2021-113BClosed
AlphaFold-MultimerGoogle DeepMind2021-10—Open
EveHarvard Medical School2021-1015M *Closed
Megatron-Turing NLG 530BMicrosoft2021-10530BClosed
S4Stanford University2021-10249M *Open
FLAN 137BGoogle Research2021-09137BClosed
MEBMicrosoft2021-09135BClosed
Turing ULRv5Microsoft2021-092BClosed
6-Act TetherFacebook AI Research2021-085MOpen
DNABERTNortheastern University2021-08110MOpen
W2v-BERTGoogle Brain2021-081BClosed
XLMR-XXLFacebook AI Research2021-0811BOpen
CodexOpenAI2021-0712B *Closed
HuBERTFacebook AI Research2021-071B *Open
SEERFacebook AI Research2021-071BOpen
ALIGNGoogle Research2021-06820MClosed
CoAtNetGoogle2021-062BClosed
DeBERTaMicrosoft2021-062BOpen
Denoising Diffusion Probabilistic Models (LSUN Bedroom)University of California (UC) Berkeley2021-06256MOpen
EfficientNetV2-XLGoogle2021-06208MOpen
Fold2SeqIBM2021-0612M *Closed
StyleGAN3-RNVIDIA2021-062MOpen
StyleGAN3-TNVIDIA2021-062MOpen
ViT-G/14Google Brain2021-062BClosed
ADMOpenAI2021-05559MOpen
ByT5-XXLGoogle2021-0513B *Open
Transformer local-attention (NesT-B)Google Cloud2021-0590MOpen
Generative BSTFacebook AI Research2021-039BOpen
Meta Pseudo LabelsGoogle Brain2021-03480M *Closed
UnicornAllen Institute for AI2021-0311BOpen
DLWPUniversity of Washington2021-023MClosed
MSA TransformerFacebook AI Research2021-02100M *Open
SRU++ LargeASAPP2021-02234MOpen
BigSSLGoogle2021-018B *Closed
CLIP (ResNet-50)OpenAI2021-0189M *Open
CLIP (ViT L/14@336px)OpenAI2021-01370MOpen
DALL-EOpenAI2021-0112B *Closed
DeiT-BMeta AI2021-0186MOpen
SwitchGoogle2021-011.6TOpen

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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