How to Switch AI Models in GitHub Copilot CLI【/model】

Overview#

Ever felt like the default model isn’t quite cutting it, or wished you could try something faster for quick tasks?

GitHub Copilot CLI defaults to Claude Sonnet 4.5, but you can actually switch to other models on the fly. That’s what /model does.

Run this in Copilot CLI:

/copilot> /model

A list of available models appears. Use the arrow keys to pick one and press Enter.

This varies over time, but typical options include:

Model	Notes
Claude Sonnet 4.5	Default. Good all-around balance
Claude Sonnet 4	Lighter and faster
GPT-5	For those who prefer OpenAI

※ Available models depend on your subscription plan and may change.

Regardless of which model you choose, 1 prompt = 1 premium request. Picking a more powerful model doesn’t cost extra.