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o4-mini (2025-04-16) retirement date and replacement

Azure OpenAI in Foundry · Model · retires Oct 16, 2027 (in 13 months)

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Dates

Checked Sep 25, 2026 on Microsoft's page
RetiresOct 16, 2027 (in 13 months)
ReplacementNone named
Identifiero4-mini
NoticeDeployment retirement; fine-tuning (training) retirement no earlier than 2027-04-16
Sourcelearn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirements

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