VS Code Language Model (Copilot)

The default provider. Uses the built-in VS Code Language Model API, which routes through your existing GitHub Copilot subscription.

Setup

Nothing beyond having Copilot enabled in VS Code. Open Settings and confirm "VS Code Language Model" is enabled — it is by default.

Model selection

Pick a specific model from the ones Copilot exposes, or leave routing set to "auto" to let VS Code choose.

Token usage

Input tokens are estimated via model.countTokens(); output tokens are estimated as content.length / 4. Both are labeled (est.) in the Output Channel and review panel — this provider does not return exact counts from the API.