# Migrating off Mistral Small 3.1

**Mistral** retires **Mistral Small 3.1** on **2025-11-30**.
Documented replacement: **Mistral Small 4**.

Source: https://docs.mistral.ai/getting-started/models/models_overview/
Source check date not recorded.
Calendar as of 2026-09-15 UTC.

| Model | Provider | Retires | Replacement |
|---|---|---|---|
| Mistral Small 3.1 | Mistral | 2025-11-30 | Mistral Small 4 |

Also retiring on 2025-11-30:
- Magistral Medium 1.1 (Mistral) → Mistral Medium 3.5
- Magistral Small 1.1 (Mistral) → Mistral Small 4
- Magistral Medium 1.0 (Mistral) → Mistral Medium 3.5
- Magistral Small 1.0 (Mistral) → Mistral Small 4
- Devstral Small 1.0 (Mistral) → Mistral Medium 3.5
- Mistral Small 3.0 (Mistral) → Mistral Small 4
- Mistral Small 2.0 (Mistral) → Mistral Small 4

Source: https://llmlatency.dev/migrate/mistral-mistral-small-3-1