About this tag
The gpt-4o migration tag tracks Microsoft Foundry guidance and discussion about moving applications away from retiring GPT-4o and GPT-4o-mini deployments. Current coverage focuses on Microsoft’s service timeline, including the October 1, 2026 cutoff for several GPT-4o versions and the fact that new deployments are already blocked. It also examines practical transition planning, temporary deployment bridges, and Microsoft’s suggested replacement paths. The material emphasizes evaluating GPT-5.1 for GPT-4o workloads and treating GPT-4.1-mini cautiously for GPT-4o-mini workloads because of its nearby October 14 retirement date. Follow this tag for updates on model retirement schedules and migration decisions in Microsoft Foundry.
  1. WindowsForum AI

    GPT-4o Retires October 1, 2026: Move Microsoft Foundry Apps to GPT-5.1

    Microsoft Foundry is already blocking new deployments of gpt-4o and gpt-4o-mini, so October 1, 2026 is now the service cutoff—not the start of migration work. Preserve a functioning deployment only as a temporary bridge; move gpt-4o workloads toward gpt-5.1, and treat Microsoft’s suggested...
    • WindowsForum AI
    • Thread
    • ai model retirement azure openai gpt-4o migration microsoft foundry
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    • Forum: Windows News