Upcoming August 2026 model deprecations in GitHub Copilot
Quick Answer
GitHub Copilot will deprecate several models, including Gemini 3.1 Pro and Claude Opus 4.5, on September 1, 2026.
Quick Take
Users are advised to transition to alternatives like Gemini 3.6 Flash and Claude Opus 4.7 or 5 before this date.
Key Points
- Deprecation affects all GitHub Copilot experiences including Chat and code completions.
- Claude Sonnet 4.6 remains available for annual subscribers despite its deprecation.
- Administrators must enable access to alternative models in Copilot settings.
- No action is required to remove deprecated models post-deprecation.
- Enterprise customers can contact account managers for assistance.
Source Excerpt
We will deprecate the following models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions), on September 1st, 2026: Model Deprecation date…
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