# Migrating off gpt-4.1-nano

**Azure OpenAI** retires **gpt-4.1-nano** on **2027-10-14** (in 441 days).
No replacement named by the provider.

Source: https://learn.microsoft.com/en-us/azure/ai-services/openai/concepts/model-retirements

| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gpt-4.1-nano | Azure OpenAI | 2027-10-14 | — not named |

Also retiring on 2027-10-14:
- gpt-4.1 (Azure OpenAI) → no replacement named
- gpt-4.1-mini (Azure OpenAI) → no replacement named

Source: https://llmlatency.dev/migrate/azure-openai-gpt-4-1-nano