magistral-small-2507
Magistral Small 1.1 (Mistral)
Yes — Magistral Small 1.1 is retired. Mistral deprecated it on October 31, 2025 and shut it down on November 30, 2025; API requests to it now fail. The recommended replacement is Mistral Small 4.
The 24B open reasoning model from Mistral's July 2025 refresh, released alongside Magistral Medium 1.1 and deprecated on the same day three months later. It is one of four Magistrals that shared a 30 November 2025 shutdown, so the entire first year of Mistral's reasoning line went dark in one evening.
The facts
| Provider | Mistral |
|---|---|
| Model id | magistral-small-2507 |
| Released | — |
| Deprecated | October 31, 2025 |
| Shutdown | November 30, 2025 · 246 days ago |
| Status | Retired |
| Last verified | August 3, 2026 |
What to use instead
What parameters mistral-small-4-0-26-03 accepts on modelparams.dev
Change the id
In most cases the migration is one string. Check the parameter differences before you ship — newer models drop older sampling knobs more often than they add them.
- "model": "magistral-small-2507"
+ "model": "mistral-small-4-0-26-03"
Frequently asked questions
- When did Mistral Magistral Small 1.1 shut down?
- Mistral Magistral Small 1.1 shut down on November 30, 2025. API requests to it fail from that date onward.
- What replaces Mistral Magistral Small 1.1?
- Mistral recommends Mistral Small 4 (`mistral-small-4-0-26-03`) as the replacement for Mistral Magistral Small 1.1.
- Is Mistral Magistral Small 1.1 still available?
- No. Mistral Magistral Small 1.1 is retired and no longer served — it was shut down on November 30, 2025. Calls to it return an error.
- How do I migrate from Mistral Magistral Small 1.1 to mistral-small-4-0-26-03?
- Swap the model id in your API call: replace "magistral-small-2507" with "mistral-small-4-0-26-03". Keep the rest of the request the same, then re-check the parameters the new model accepts before you ship.
Sources
- Mistral models overview · docs.mistral.ai · accessed August 3, 2026
Found something wrong? The data is one YAML file — edit it on GitHub.
This page, for machines
Drop the badge in a README so it turns red the day this model is retired:
[](https://modeldeprecations.dev/mistral/magistral-small-2507)