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breakingremovedGitHub calls it: Retired

MAI-Code-1-Flash deprecated

Announced
Tags
copilot
Severity
breaking, set by reef/github-rule-v1
Source
https://github.blog/changelog/2026-09-10-mai-code-1-flash-deprecated

We have deprecated MAI-Code-1-Flash across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions) today, September 10, 2026.

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ModelDeprecation dateSuggested alternative
MAI-Code-1-Flash2026-09-10MAI-Code-1.1-Flash

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Please update your workflows and integrations to use a supported model. Copilot Enterprise administrators may need to enable access to the alternative model through their model policies in Copilot settings. As an administrator, you can verify availability by checking your individual Copilot settings and confirming that the policy is enabled for the specific model. Once enabled, you’ll see the model in the Copilot Chat model selector in VS Code and on github.com. No action is required to remove the deprecated model.

GitHub Enterprise customers with questions or concerns are encouraged to reach out to their account manager for further assistance.

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To learn more about the models available in Copilot, see our documentation on models and get started with Copilot today.

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The text above is the source's. reef added the severity, the dates it could read from the text, and the endpoints and scopes named in code.