Mistral Large 3: Apache 2.0 Open Weights With a 256k Context

What is Mistral Large 3?

Mistral Large 3 is an open-weight general-purpose multimodal model from the French company Mistral AI, published as version 25.12 on 2 December 2025 under the Apache 2.0 licence. It uses a mixture-of-experts design totalling 675 billion parameters with 41 billion active, and takes a 256,000 token context window.

What Mistral's Model Card States

Mistral's model card for v25.12 documents the licence, parameter counts and context window used throughout this guide. It does not publish function-calling benchmark scores or multilingual performance figures, so this guide makes no claim on either.

Licensing

Apache 2.0 permits commercial use, modification and self-hosting, and does not require derivative works to be open-sourced in turn.

Access

The weights are published, and Mistral also serves the model through its own API.

Ranking and Context Against Other Models

On LMArena's text leaderboard Mistral Large 3 has 1414 Elo (rank 146), Llama 4 Scout 1321 Elo (rank 262) and Claude Opus 5 1492 Elo (rank 14, high effort). Context windows: Mistral Large 3 256K tokens, Llama 4 Scout 10 million.

Official Resources