# Mistral Medium 3.1 [Canonical model page](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08) · [Model library](https://headlessthrones.com/models) Public catalog reference from Headless Thrones. Exact catalog ID: `mistral-ai-mistral-medium-3-1-25-08`. Catalog source-check date: 2026-10-23. This brief contains the public catalog answers and any catalog guide, not private drafts, historical editorial revisions or independently measured rankings. The canonical HTML page may also display separately published editorial. Current catalog answers ## What to know about Mistral Medium 3.1 AI-compiled from linked model documentation. This is a catalog reference, not an independent performance review. Catalog checked October 23, 2026. [Retirement & migration](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08#model-answer-research) · [Exact model](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08#model-answer-identity) · [Access](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08#model-answer-access) · [Token limits](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08#model-answer-context) · [Dates & knowledge](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-1-25-08#model-answer-dates) ### What happened to Mistral Medium 3.1, and what replaces it? These details come from the linked publisher material for this model. Reported capabilities and training descriptions are publisher statements, not independent test results. **API deprecation**: Mistral records deprecation on 2026-05-22. This lifecycle date is distinct from the model release or training cutoff. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) **Recommended migration**: Mistral recommends Mistral Medium 3.5 for new integrations. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) **API identifier**: mistral-medium-2508 [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) **Documented integration features**: This exact model page lists Structured Outputs, Function Calling, Predicted Outputs, Agents & Conversations, Batching. For archived models this describes the documented interface, not present API availability. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) ### Which Mistral Medium 3.1 does this page describe? Mistral Medium 3.1 is a model record from **Mistral AI** in the Mistral family. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) The recorded model identifier or checkpoint is `25.08`. Use that exact identifier when checking documentation or a provider listing. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) ### How can you access Mistral Medium 3.1? The catalog documents **API** access for Mistral Medium 3.1. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) As of the catalog check, this version was marked deprecated. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) Check the linked lifecycle information before starting a new integration. For API use, confirm the exact model identifier, your account and region, and the endpoint's current limits in the linked documentation. An API listing does not establish access through a consumer subscription. ### What are Mistral Medium 3.1's context and output limits? The documented **context window is 128,000 tokens**. [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) A separate maximum-output value is not established in this record. The context or input figure should not be used as an output allowance. Context, input and output limits describe different constraints. Do not add the figures together to infer a larger window. Check the endpoint's accounting for conversation history, system instructions, tools, media and generated tokens; a documented maximum is not a guarantee of answer quality or a measured usable capacity. ### What dates are documented for Mistral Medium 3.1? **Release date: August 12, 2025.** [Source](https://docs.mistral.ai/models/mistral-medium-3-1-25-08) This is a release milestone, not a knowledge or training cutoff. The source labels this “Release date on Mistral model specification.” Neither a knowledge cutoff nor a training-data cutoff is established here. A release date, repository upload or filename cannot supply those missing dates. **Catalog qualifications:** Mistral context shorthand 128k is represented in nominal decimal tokens. **Evidence still missing here:** complete input/output pricing and knowledge and training-data cutoffs. Missing documentation is not evidence that a feature is unavailable. Headless Thrones has not independently benchmarked this model for this reference. Evaluate it on representative work before choosing it; these facts do not rank its accuracy, reliability, speed or suitability against another model. Keep the exact version in view ## Other Mistral models from Mistral AI. These are separate records in the same publisher family. A shared family name does not establish equal capabilities or interchangeable licenses. ### [Mistral-Medium-3.5-128B](https://headlessthrones.com/models/mistral-ai-mistral-medium-3-5-128b) API · Open weights · 256,000 context tokens ### [Mistral-Small-4-119B-2603](https://headlessthrones.com/models/mistral-ai-mistral-small-4-119b-2603) API · Open weights · 256,000 context tokens ### [Mistral-Large-3-675B-Instruct-2512](https://headlessthrones.com/models/mistral-ai-mistral-large-3-675b-instruct-2512) API · Open weights · 256,000 context tokens ### [Mistral Large 4](https://headlessthrones.com/models/mistral-ai-mistral-large-4-0) API · Open weights · 1,000,000 context tokens ### [Mistral Small Creative](https://headlessthrones.com/models/mistral-ai-mistral-small-creative-25-12) API · 32,000 context tokens ### [Mistral-Small-3.2-24B-Instruct-2506](https://headlessthrones.com/models/mistral-ai-mistral-small-3-2-24b-instruct-2506) API · Open weights · 128,000 context tokens