GitHub Copilot: Gemini 3 Pro Deprecated

Gemini 3 Pro Removed from GitHub Copilot

Effective March 26, 2026, Google's Gemini 3 Pro model is no longer available in any GitHub Copilot experience. The removal was accelerated by Google's own provider-side retirement of the model, which required GitHub to act ahead of its originally planned deprecation timeline.

Scope of the Removal

Gemini 3 Pro has been removed from every surface where Copilot models are selectable, including Copilot Chat, inline edits, ask mode, agent mode, and code completion. The change affects all supported IDEs and platforms: VS Code, Visual Studio, JetBrains IDEs, Xcode, Eclipse, and the GitHub web interface.

Recommended Replacement: Gemini 3.1 Pro

GitHub recommends Gemini 3.1 Pro as the direct replacement for Gemini 3 Pro. Gemini 3.1 Pro is already available in public preview across all major IDEs and platforms supported by Copilot.

Gemini 3.1 Pro brings meaningful capability improvements over its predecessor. The model achieves an 80.6% score on SWE-Bench Verified — a standard benchmark for software engineering tasks — and 77.1% on ARC-AGI-2, representing roughly double the performance of Gemini 3 Pro on that test. It also supports a 1 million token context window, making it well suited to tasks that require reasoning across large codebases or long documents.

What Administrators Need to Do

For Enterprise and Business plan customers, Gemini 3.1 Pro is not automatically available to end users. Administrators must navigate to their organization's Copilot policy settings and explicitly enable Gemini 3.1 Pro before it appears in the model picker for their teams. Individual users on plans where the model is already enabled do not need to take any action beyond selecting Gemini 3.1 Pro in their IDE's model picker.

Users who had Gemini 3 Pro set as their default model will need to select a new default. GitHub suggests choosing Gemini 3.1 Pro for continuity, given its direct lineage and superior performance characteristics.