Llama 3.1 405B
Meta AI🇺🇸 United States
Meta's largest open-weights model. 405B parameters, instruction-tuned.
Context window128K tokens
Version History
Meta-Llama-3.1-405B-Instructmajor
Meta opens Llama 3.1 405B — the first open-weights model to challenge GPT-4o. Released with 128K context and tool use support.
Benchmark Scores
Full leaderboard →26.0 tokens_per_sec
Speed (tok/s)