# Migrating off open-codestral-mamba

**Mistral** retires **open-codestral-mamba** on **2025-06-06**.
Documented replacement: **Codestral**.

Source: https://docs.mistral.ai/getting-started/models/models_overview/
Source last checked: 2026-09-28.
Calendar as of 2026-09-28 UTC.

| Model | Provider | Retires | Replacement |
|---|---|---|---|
| open-codestral-mamba | Mistral | 2025-06-06 | Codestral |

Also retiring on 2025-06-06:
- gpt-4-32k (OpenAI) → gpt-4o
- gpt-4-32k-0613 (OpenAI) → gpt-4o
- gpt-4-32k-0314 (OpenAI) → gpt-4o

Source: https://llmlatency.dev/migrate/mistral-open-codestral-mamba