GitHub Copilot makes Google's Gemini 4 Argon generally available

GitHub makes Google's Gemini 4 Argon generally available in GitHub Copilot for coding, agentic, and reasoning tasks.

GitHub says the model solved more tasks than previous Gemini models on every coding benchmark in early testing, with its largest gains in Copilot CLI. A later GitHub post on X adds that it is available in the GitHub Copilot app, CLI, and @code.

The model is billed at Google's list pricing under usage-based billing. It is available to Copilot Pro+, Max, Business, and Enterprise users, with rollout described as gradual. Copilot Business and Enterprise administrators can manage access through the model policy in Copilot settings.