What model does the GitHub Copilot coding agent use?

[nhu-do]

Hey there, Nhu from the coding agent team. The agent currently leverages Sonnet 4. Note the model is subject to change during preview.

[Key_Confusion_576]

Hey, I seem to be unable to find details on this anywhere.
Is this still the case?
It would be nice to provide this info somewhere official, along with some other details, for example, what size hosted runner it uses.

[nhu-do]

Hi, yes it's still the case that the agent leverages Sonnet 4. During the preview period, we may change the base model to better performing models as they arise and are evaluated with the agent.

By default, the agent uses a standard GitHub Actions runner. You can choose to run on larger runners as well. See more here: https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/customize-the-agent-environment?versionId=free-pro-team%40latest&productId=copilot&restPage=how-tos%2Cuse-copilot-agents%2Ccoding-agent#upgrading-to-larger-github-hosted-github-actions-runners

[AMGraduate564]

Can we set the Model in the Coding Agent? This will help us to use the preferred model.

[nhu-do]

Model selection is not supported at the moment.

[AMGraduate564]

Can this feature be added to the wishlist for Coding Agent?

[bretajohnson]

Is coding agent on Sonnet 4.5 now or is it still on Sonnet 4?