Copilot Studio – Information regarding the end of support for selected AI models

We are announcing the end of support for selected AI models on the Standard and GitHub Copilot harnesses in Copilot Studio. Beginning on each models’ applicable migration date, the selected models will no longer be available in Copilot Studio, and agents will automatically migrate to a replacement model. How does this affect me? Agents configured with retiring models will be automatically migrated to a supported replacement model. The planned replacement model and migration date depends on both the model and the harness used by the agent. Review your agents by harness and model to identify those using a retiring model, then work with their owners to prepare for migration. For the latest model availability, see the guidance for your agent’s harness: Standard harness model availability GitHub Copilot harness model availability Retiring model Harness Planned replacement model Migration date GPT-4.1* Standard GPT Chat Latest November 12, 2026 GPT-4.1 Mini Standard GPT Chat Latest November 12, 2026 GPT-5 Chat* Standard GPT Chat Latest November 12, 2026 GPT-5 Chat* GitHub Copilot GPT 5.6 Terra November 12, 2026 GPT-5 Auto Standard GPT Chat Latest November 12, 2026 GPT-5 Reasoning Standard GPT Chat Latest November 12, 2026 GPT 5.6 Sol GitHub Copilot GPT 6 Sol November 12, 2026 GPT 5.6 Luna GitHub Copilot GPT 6 Luna November 12, 2026 *Note: For environments outside the U.S. where cross-geo data movement is restricted, GPT-4.1 and GPT-5 will remain supported and will not retire as part of this migration. To learn more about cross-geo data movement, including availability and eligibility, see Geographical availability of Copilot. GPT Chat Latest is the supported chat model option going forward for the Copilot Studio Standard harness. It keeps agents on the latest supported GPT chat model as snapshots within the current major model version are updated over time. Moving to a new major model version is a separate change, and customers will receive at least 30 days’ notice. For agents on the GitHub Copilot harness, refer to the planned replacement model listed in the table above. Choose the model that best fits your agent You can use the planned replacement or choose […]

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