I received a notification that the GPT-4o model will retire on 10/26/2025, with continued availability until 11/25/2025. However, when I check the available models in Copilot Studio, I notice that none of the listed models are GA (Generally Available)—most are either in preview or experimental stages.
This raises a few concerns:
- What model should we migrate to for production use after GPT-4o retires?
- Is there a timeline for when a GA model will be available in Copilot Studio?
- Are there any recommended best practices for transitioning from GPT-4o to a stable alternative?
Thanks!

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