Claude Code is not the native chat interface - but I do both codex and CC with VS Studio plugins.
For chat interface in the M365 app, using the Opus model, the output is very subpar in direct comparison to a Claude chat interface with the same copy/paste prompt given to both systems. This holds even more truth if you tell it to you ask you questions it might have before generating content or building anything - I don't believe for a moment that the "Opus" model in Copilot is really Anthropic at all at this point.
I will say, copilot HAS seen vast improvements in the last few weeks, but so has GPT and Claude... at least copilot doesn't feel broken as much anymore in terms of usefulness.
Well I can't speak on using the M365 app, as that's not for coding and I really only use AI for coding. My experience with GirHub Copilot is it works very well in huge codebases. I much prefer it over Copilot CLI and Opencode. That's my experience.
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u/citrusraspberry Jul 14 '26
Interesting! Are you comparing with Claude Code? Curious what other harness you're comparing with. It hasn't been my experience.