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GitHub Copilot adds Google's Gemini 4 Hydrogen model

GitHub says the new Google Flash model is generally available to paid Copilot plans, with admin controls.

In brief
  • GitHub made Google's Gemini 4 Hydrogen generally available in Copilot on 13 November. It is open to Pro, Pro+, Max, Business and Enterprise users.
  • Billing follows the provider's list prices, and rollout is gradual. Business and Enterprise admins can switch the model off in Copilot settings.

GitHub said on 13 November that Gemini 4 Hydrogen is now generally available in GitHub Copilot. It is Google's newest Flash model. GitHub says it is built for fast coding work in which the AI uses tools and runs tasks with many steps. GitHub also says it follows instructions better than Gemini 3.8 Flash. Users on Copilot Pro, Pro+, Max, Business and Enterprise plans can pick it in the model picker.

GitHub says the rollout is gradual, so some users may not see the model yet. It says the model is billed at the provider's list price under usage-based billing. The announcement gives no price figures and points readers to a separate pricing page. GitHub did not say how much better the model is than Gemini 3.8 Flash, and it shared no test results.

Under the default setting, new models switch on by themselves for Business and Enterprise plans, GitHub said. That changes only if an admin turned off the global default or blocked this model. Teams that watch AI spending or control which models developers use can set this in the model policy in Copilot settings.

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Reporting: GitHub.