Gemini 4 Argon reaches general availability in GitHub Copilot
Gemini 4 Argon, Google's newest frontier model, is now generally available in GitHub Copilot for complex coding, agentic, and reasoning tasks. Rollout is gradual, so it may not appear for you yet.
Copilot Pro+, Max, Business, and Enterprise users can pick it in the model picker across VS Code, Visual Studio, Copilot CLI, the coding agent, the Copilot app, JetBrains IDEs, Xcode, and Eclipse. It is billed at provider list pricing under usage-based billing; Business and Enterprise admins manage access via model policy.
Source: GitHub Copilot

4October 14, 2026 383