# Mistral Nemo 12B — deprecation status

> Yes — Mistral Nemo 12B is retired. Mistral deprecated it on May 22, 2026 and shut it down on July 31, 2026; API requests to it now fail. The recommended replacement is Ministral 3 8B.

Built with NVIDIA, Apache 2.0, and the model that introduced the Tekken tokenizer Mistral still uses. It is the longest-lived open id in the catalogue - two years on the API, outlasting three full Mistral Small generations - and was only retired in the May 2026 wave.

## Facts

| Field | Value |
| --- | --- |
| Provider | Mistral |
| Model id | `open-mistral-nemo-2407` |
| Status | Retired |
| Aliases | `open-mistral-nemo` |
| Deprecated | May 22, 2026 |
| Shutdown | July 31, 2026 (3 days ago) |
| Last verified | August 3, 2026 |

## Replacement

- **Ministral 3 8B** (`ministral-3-8b-25-12`) · recommended — https://modeldeprecations.dev/mistral/ministral-3-8b-25-12
  - Parameters it accepts: https://modelparams.dev/models/mistral/ministral-3-8b-25-12

```diff
- "model": "open-mistral-nemo-2407"
+ "model": "ministral-3-8b-25-12"
```

## FAQ

### When did Mistral Nemo 12B shut down?

Mistral Nemo 12B shut down on July 31, 2026. API requests to it fail from that date onward.

### What replaces Mistral Nemo 12B?

Mistral recommends Ministral 3 8B (`ministral-3-8b-25-12`) as the replacement for Mistral Nemo 12B.

### Is Mistral Nemo 12B still available?

No. Mistral Nemo 12B is retired and no longer served — it was shut down on July 31, 2026. Calls to it return an error.

### How do I migrate from Mistral Nemo 12B to ministral-3-8b-25-12?

Swap the model id in your API call: replace "open-mistral-nemo-2407" with "ministral-3-8b-25-12". Keep the rest of the request the same, then re-check the parameters the new model accepts before you ship.

### Does this apply to open-mistral-nemo too?

Yes. Mistral Nemo 12B is also published as `open-mistral-nemo`; that id shares the same lifecycle dates as `open-mistral-nemo-2407`.

## Sources

- [Mistral models overview](https://docs.mistral.ai/getting-started/models/models_overview/) — accessed 2026-08-03

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Canonical page: https://modeldeprecations.dev/mistral/open-mistral-nemo-2407
JSON: https://modeldeprecations.dev/api/v1/models/mistral/open-mistral-nemo-2407.json