GitHub Deprecates Gemini 2.5 Pro and Gemini 3 Flash in GitHub Copilot
GitHub has officially announced the deprecation of Google's Gemini 2.5 Pro and Gemini 3 Flash models across all GitHub Copilot experiences. This change applies immediately to all capabilities including Copilot Chat, inline editing, agent modes, and code completions. Developers and organizations must transition their workflows to other currently supported models to avoid service disruption.
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| Aspect | Before / Alternative | After / This |
|---|---|---|
| Supported Gemini Models | Gemini 2.5 Pro and Gemini 3 Flash available | Deprecated; users must select alternative supported models |
| Copilot Experience Scope | Gemini models active in Chat, Inline, and Completions | Disabled across all Copilot interfaces and agent modes |
| Enterprise Administration | Policies allowed selection of Gemini 2.5 Pro / 3 Flash | Administrators must adjust model policies to alternative engines |
Action Checklist
- Review organization-level Copilot model policies in GitHub Enterprise Ensure alternative models are enabled for developers
- Test prompt behaviors with alternative active models Output variations may occur when switching away from Gemini
- Update automated workflows or integrations relying on specific Gemini behaviors Complete migrations before the final cutoff on July 31, 2026
- Contact your GitHub account manager if transition assistance is required Applies primarily to enterprise-tier accounts
Source: GitHub Changelog
This page summarizes the original source. Check the source for full details.
