Mistral Medium 3.1

2025-08-12 · Publisher : Mistral AI · Domain : Artificial Intelligence

Mistral AI releases Mistral Medium 3.1 (mistral-medium-2508), an update to Medium 3 announced with an overall performance gain, a better tone and more relevant web searches, via API and in Le Chat.

What changes

  • Overall performance improvement over Medium 3.
  • Improved tone of responses.
  • Smarter web searches in Le Chat, where the model becomes the default model.
  • No blog post: announced on the Mistral AI X account and in the changelog.

### Specifications - Context: 128k (documentation); multimodal (text and image). - License: proprietary (Premier model), weights not published. - Availability: Le Chat (default model) and API. - API identifier: `mistral-medium-2508` (deprecated on 05/22/2026, retirement on 08/31/2026 according to the documentation). ### Pricing Pricing not verified for this version: the current documentation page no longer displays it (deprecated model). For reference, Mistral Medium 3 was priced at 0.4 USD input and 2 USD output per million tokens. ### Benchmarks No figures published by the vendor in the sources consulted. ### Key takeaways A comfort update for Medium 3 users, with no change in positioning: same family identifier, better tone and web search.

Links

Tags : LLM, Mistral, Medium, Multimodal, Entreprise