Mistral Medium 3.1
Mistral Medium 3.1 updates the May 2025 Medium model. The official record describes changes to tone and performance and retains text-and-image use with a 128K context.
Deprecated API; check access details
Tools and structured replies
The catalog lists function calling, structured output, predicted output and document question answering. It also lists use through the Agents and Conversations interfaces. Those interfaces are access methods for this model, not separate trained releases.Mistral Medium 3.1 model and lifecycle record
Compare against the correct Medium generation
The versioned identifier is mistral-medium-2508. It is neither the December 2023 prototype nor the later Medium 3.5 weight release. Mistral marks 3.1 deprecated and does not list a public checkpoint for this version.Mistral Medium 3.1 model and lifecycle record
Specifications & access
| Detail | Value and conditions |
|---|---|
| Status | Deprecated API; check access details |
| Launch date | |
| Access | API |
| Model identifiers | mistral-medium-2508 |
| Context window | 128,000 tokens The model catalog advertises 128k context for this version. This is not a measured recall limit. Mistral Medium 3.1 model and lifecycle record |
| Weight access | No public weight download is listed in the official model record.Mistral Medium 3.1 model and lifecycle record |
| Access and lifecycle | Hosted API deprecated on 22 May 2026.Mistral Medium 3.1 model and lifecycle record |