01 What happened
GitHub announced on October 13 that Gemini 4 Argon, Google's newest frontier model, is generally available in GitHub Copilot. In GitHub's early testing, Argon solved more tasks than previous Gemini models on every coding benchmark, with the largest gains in Copilot CLI. The rollout is gradual; users on eligible plans can select the model in supported IDEs. The model is billed at provider list pricing under usage-based billing.
02 Key details
- Gemini 4 Argon is now generally available in GitHub Copilot and is designed for complex coding, agentic, and reasoning tasks.
- In GitHub's early testing, Argon solved more tasks than previous Gemini models on every coding benchmark, with the largest gains in Copilot CLI.
- It is available to Copilot Pro+, Max, Business, and Enterprise users; rollout is gradual. Enterprise and Business admins can manage access through model policy.
- Users can select the model in the model picker in VS Code, Visual Studio, Copilot CLI, GitHub Copilot coding agent, Copilot app, JetBrains IDEs, Xcode, and Eclipse.
03 Why it matters
Developers using GitHub Copilot can access a model for complex reasoning and agentic workflows; actual results depend on the specific tasks and workflows used.
04 Who it matters to
AI developers, enterprise AI customers and enterprise AI service administrators.
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