# Mistral Mixtral 8x22B — deprecation status

> Yes — Mixtral 8x22B is retired. Mistral deprecated it on November 30, 2024 and shut it down on March 30, 2025; API requests to it now fail. The recommended replacement is Mistral Small 4.

141B total parameters with 39B active, released April 2024 as the largest open model of its moment and the high-water mark for Mistral's fully-open strategy before Large 1.0 went closed a few weeks later. Retired 30 March 2025 alongside the rest of the open-prefix ids.

## Facts

| Field | Value |
| --- | --- |
| Provider | Mistral |
| Model id | `open-mixtral-8x22b` |
| Status | Retired |
| Deprecated | November 30, 2024 |
| Shutdown | March 30, 2025 (491 days ago) |
| Last verified | August 3, 2026 |

## Replacement

- **Mistral Small 4** (`mistral-small-4-0-26-03`) · recommended — https://modeldeprecations.dev/mistral/mistral-small-4-0-26-03
  - Parameters it accepts: https://modelparams.dev/models/mistral/mistral-small-4-0-26-03

```diff
- "model": "open-mixtral-8x22b"
+ "model": "mistral-small-4-0-26-03"
```

## FAQ

### When did Mistral Mixtral 8x22B shut down?

Mistral Mixtral 8x22B shut down on March 30, 2025. API requests to it fail from that date onward.

### What replaces Mistral Mixtral 8x22B?

Mistral recommends Mistral Small 4 (`mistral-small-4-0-26-03`) as the replacement for Mistral Mixtral 8x22B.

### Is Mistral Mixtral 8x22B still available?

No. Mistral Mixtral 8x22B is retired and no longer served — it was shut down on March 30, 2025. Calls to it return an error.

### How do I migrate from Mistral Mixtral 8x22B to mistral-small-4-0-26-03?

Swap the model id in your API call: replace "open-mixtral-8x22b" 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](https://docs.mistral.ai/getting-started/models/models_overview/) — accessed 2026-08-03

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Canonical page: https://modeldeprecations.dev/mistral/open-mixtral-8x22b
JSON: https://modeldeprecations.dev/api/v1/models/mistral/open-mixtral-8x22b.json