GitHub Copilot to Deprecate Gemini 2.5 Pro and Gemini 3 Flash Models by July 31

GitHub is scheduling the formal deprecation of Google's Gemini 2.5 Pro and Gemini 3 Flash models across the entire GitHub Copilot ecosystem. This transition impacts all primary Copilot interfaces, including Copilot Chat, inline code edits, ask and agent modes, as well as standard code completions. Engineering teams currently relying on these specific models for their development workflows will need to evaluate alternative models to prevent disruption.
Related tools
Recommended tools for this topic
These picks prioritize high-intent tools relevant to this topic. Some links may include partner or affiliate tracking.
Strong fit for AI, backend, and frontend readers looking for an AI-first coding workflow.
View CursorNatural next step for readers evaluating LLM adoption, APIs, and production inference.
Explore APIA strong fit for readers comparing Claude-class models, safety, and long-context workflows.
View AnthropicAction Checklist
- Identify active development environments and Copilot configurations using Gemini 2.5 Pro or Gemini 3 Flash Check both organization-level policies and individual IDE configurations.
- Select alternative supported models available within GitHub Copilot settings Verify model compatibility with existing prompt templates and custom agents.
- Update organization-wide default model settings in the GitHub admin console Ensure the changes are pushed to all seats before the July 31st deadline.
- Monitor developer telemetry for any fallback errors or configuration anomalies post-migration Keep an eye on IDE logs if developers report disruption in completion or chat behavior.
Source: GitHub Changelog
This page summarizes the original source. Check the source for full details.


