It's massively cheaper. Copilot charges per request, which with some clever prompting, can lead to huge amounts of work being done at fractions of the cost of Claude Code. Millions of tokens for mere pennies. MS must be taking a huge hit somewhere, because I'm probably getting 10-20x my value out of GH relative to CC.

I am not locked in to Anthropic, either. I can easily switch between GPT and Gemini models based on how I think each would perform in various scenarios. That's a big win. I use a lot of design with Opus, implement with GPT 5.4.

Also, Github Copilot CLI is pretty much at feature parity (for the stuff that matters) with Claude Code. Using both at work and home, I don't think there's much difference in features between the two. Maybe I'm not a super power user, and just a regular dumb user, but GH doesn't seem buggy and everything I think I'd want to do with CC I can do with GH.