The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Closed-weight language models from Google Research

4

Models

1 organisations

0%

Open weights

0 open, 4 closed

2

Frontier

By Epoch's flag

540B

Largest traceable

PaLM (540B)

2017–2023

Span

4 with a traceable size

Records

4
Closed-weight language models from Google Research, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
GQA-8-XXLGoogle Research2023-1211BClosed
PaLM (540B)Google Research2022-04540BClosed
FLAN 137BGoogle Research2021-09137BClosed
TransformerGoogle Research2017-06213MClosed

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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