gpt-4.1-nano (2025-04-14) retirement date and replacement

Name: gpt-4.1-nano (2025-04-14) retires (Azure OpenAI in Foundry)
Start: 2027-10-14
End: 2027-10-14

Azure OpenAI in Foundry · Model · retires Oct 14, 2027 (in 13 months)

Dates

Checked Sep 25, 2026 on Microsoft's page

Retires	Oct 14, 2027 (in 13 months)
Replacement	None named
Identifier	gpt-4.1-nano
Notice	Deployment retirement; fine-tuning (training) retirement no earlier than 2027-04-14
Source	learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirements

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