The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Open-weight models from Google

10

Models

1 organisations

100%

Open weights

10 open, 0 closed

4

Frontier

By Epoch's flag

1.6T

Largest traceable

Switch

2018–2022

Span

7 with a traceable size

Releases

by year

Records

10
Open-weight models from Google, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
RT-1Google2022-1235MOpen
EfficientNetV2-XLGoogle2021-06208MOpen
ByT5-XXLGoogle2021-0513B *Open
SwitchGoogle2021-011.6TOpen
mT5-XXLGoogle2020-1013BOpen
T5-11BGoogle2019-1011BOpen
T5-3BGoogle2019-103BOpen
BigBiGANGoogle2019-0786M *Open
EfficientNet-L2Google2019-05480M *Open
BERT-LargeGoogle2018-10340MOpen

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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