Gemini 4 Hydrogen is generally available in GitHub Copilot

GitHub says Gemini 4 Hydrogen, Google's latest Flash model, is now generally available in GitHub Copilot. It describes the model as designed for fast, efficient agentic coding, tool use and multistep workflows, with improved instruction following over Gemini 3.8 Flash.

Availability. The model is offered to Copilot Pro, Pro+, Max, Business and Enterprise users, in the model picker of Visual Studio Code, Visual Studio, Copilot CLI, the Copilot coding agent, the Copilot app, github.com, GitHub Mobile on iOS and Android, JetBrains IDEs, Xcode, Eclipse and the Copilot SDK. GitHub says the rollout is gradual. It is billed at provider list pricing under usage-based billing.

Admin policy. On Copilot Business and Enterprise, administrators manage access through the model policy in Copilot settings. Under default model enablement, new models are turned on automatically unless an administrator has switched off the global default or disabled this model.