Language models from Meta AI
17
Models
1 organisations
81%
Open weights
13 open, 3 closed
1
Frontier
By Epoch's flag
405B
Largest traceable
Llama 3.1-405B
2017–2026
Span
11 with a traceable size
Organisation
Country
Records
17| Model | Organisation | Released | Parameters | Weights |
|---|---|---|---|---|
| Muse Spark 1.3 | Meta AI | 2026-09 | — | Closed |
| Muse Spark 1.2 | Meta AI | 2026-08 | — | Closed |
| Llama 3.3 70B | Meta AI | 2024-12 | 70B | Open |
| Llama 3.1-405B | Meta AI | 2024-07 | 405B | Open |
| Llama 3-70B | Meta AI | 2024-04 | 70B | Open |
| Llama Guard | Meta AI | 2023-12 | 7B | Open |
| Llama 2-70B | Meta AI | 2023-07 | 70B | Open |
| Llama 2-7B | Meta AI | 2023-07 | 7B | Open |
| LLaMA-65B | Meta AI | 2023-02 | 65B | Open |
| Galactica | Meta AI | 2022-11 | 120B * | Open |
| NLLB | Meta AI | 2022-07 | 55B | Open |
| OPT-175B | Meta AI | 2022-05 | 175B | Open |
| Sparse all-MLP | Meta AI | 2022-04 | 9B | Closed |
| data2vec (language) | Meta AI | 2022-01 | 705M * | Open |
| Contriever | Meta AI | 2021-12 | 110M * | Open |
| XGLM-7.5B | Meta AI | 2021-12 | 8B | Open |
| ConvS2S (ensemble of 8 models) | Meta AI | 2017-07 | — | Not recorded |
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.