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Preview · early version, more releases are being added · early version
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Meta · model release · downloadable model

Llama 3.1 405B

Meta releases Llama 3.1 405B, a very large AI model anyone can download, with upgraded smaller versions.

In detail

Meta released Llama 3.1 405B, which it described as the largest openly available foundation model, along with upgraded 8B and 70B models with 128K context. Weights are available to download from llama.meta.com and Hugging Face.

Sources

  1. Introducing Llama 3.1: Our most capable models to date · Meta · Primary source

Last checked 11 November 2026.

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