Here is the basic comparison between the two, though it is not entirely accurate:

Level of autonomy is pretty much the same it also plans and tests and executes and commits in GitHub Copilot. And the context window in GitHub Copilot is at least 400K and actually depends on the LLM model Copilot is using so that is wrong too :)

Here are the cheaper models in GitHub Copilot that I like to use:

Here is the example of the 40 actions via GitHub Copilot or a day worth of building software and you can see that it was planning and doing other things, it also automatically suggests a cheaper LLM model which you can see it used GPT 5.3 codex and not GPT 5.5 or 5.4 which made working with it dirt cheap while producing perfect code:

I worked with Claude Code as well, but abandoned it because a session like the one above that lasted all day could easily eat up $40+ instead of eighty cents and the output is the same and sometimes way worse with more issues.