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AI is advancing rapidly, and Microsoft Copilot Studio keeps your agent updated with the latest models. To balance innovation and stability, you can continue using retired models for 30 days after an automatic upgrade—helpful for compatibility, compliance, or specific business needs.
Note
- As of October 27, GPT‑4o is retired in Copilot Studio for agents using generative orchestration, except for GCC customers who will continue using GPT‑4o. The new default model is GPT‑4.1, which delivers improved performance, reliability, and consistency across experiences. GPT‑4o remains available until November 26, 2025 if you enable the Continue using retired models option.
- For latest model availability, check the list available in the models dropdown of your agent's Overview page.
To use this feature:
Go to your agent's Settings page.
In the Model section, turn on Continue using retired models.
Once Continue using retired models is turned on, you can switch between retired and upgraded models at any time during the 30-day period. Your preference applies to any future model upgrades until you turn off the setting.