devstral-medium-2507
Devstral Medium 1.0 (Mistral)
Yes — Devstral Medium 1.0 is retired. Mistral deprecated it on February 27, 2026 and shut it down on May 31, 2026; API requests to it now fail. The recommended replacement is Mistral Medium 3.5.
The premier-tier half of the first Devstral generation, sold as the coding model you paid for when the open Devstral Small was not strong enough. It ran ten months before the February 2026 deprecation wave took it, and unlike Small it never had an open-weights release to fall back on.
The facts
| Provider | Mistral |
|---|---|
| Model id | devstral-medium-2507 |
| Released | — |
| Deprecated | February 27, 2026 |
| Shutdown | May 31, 2026 · 64 days ago |
| Status | Retired |
| Last verified | August 3, 2026 |
What to use instead
What parameters mistral-medium-3-5-26-04 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": "devstral-medium-2507"
+ "model": "mistral-medium-3-5-26-04"
Frequently asked questions
- When did Mistral Devstral Medium 1.0 shut down?
- Mistral Devstral Medium 1.0 shut down on May 31, 2026. API requests to it fail from that date onward.
- What replaces Mistral Devstral Medium 1.0?
- Mistral recommends Mistral Medium 3.5 (`mistral-medium-3-5-26-04`) as the replacement for Mistral Devstral Medium 1.0.
- Is Mistral Devstral Medium 1.0 still available?
- No. Mistral Devstral Medium 1.0 is retired and no longer served — it was shut down on May 31, 2026. Calls to it return an error.
- How do I migrate from Mistral Devstral Medium 1.0 to mistral-medium-3-5-26-04?
- Swap the model id in your API call: replace "devstral-medium-2507" with "mistral-medium-3-5-26-04". 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/devstral-medium-2507)