I think Copilot is a platform or marketplace more than anything an Microsoft doesn't really need to care about what models are being used. They don't need to have a secret sauce as much as they need to make the entire ecosystem easy to use. They have had a lot of success over the years with VSC and this seems to build on that.

Claude Code is everywhere inside Apple too. Almost everyone has access to it and many use it

Putting a co-pilot button on laptops before they even figured out what exactly they want to do with it is just peak MicroSoft Product Strategy.

I don’t understand how their various Copilot tools are so bad. Are they using a proprietary model instead of ChatGPT or Claude?

What are we discussing here?

The tools or the models? It's getting absurdly confusing.

"Claude Code" is an interface to Claude, Cursor is an IDE (I think?! VS Code fork?), GitHub Copilot is a CLI or VS Code plugin to use with ... Claude, or GPT models, or ...

If they are using "Claude Code" that means they are using Anthropic's models - which is interesting given their huge investment in OpenAI.

But this is getting silly. People think "CoPilot" is "Microsoft's AI" which it isn't. They have OpenAI on Azure. Does Microsoft even have a fine-tuned GPT model or are they just prompting an OpenAI model for their Windows-builtins?

When you say you use CoPilot with Claude Opus people get confused. But this is what I do everyday at work.

shrug

I bet it goes the way of Edge, where they just tap out and “fork” Claude.

32 comments and no mention of codex or windsurf or cursor.

I try GitHub Copilot every once in a while, and just last month it still managed to produce diffs with unbalanced curly braces, or tried to insert (what should be) a top-level function into the middle of another function and screw up everything. This wasn’t on a free model like GPT 4.1 or 5-mini, IIRC it was 5.2 Codex. What the actual fuck? Only explanation I can come up with is that their pay-per-request model made GHC really stingy with using tokens for context, even when you explicitly ask it to read certain files it ends up grepping and adding a couple lines.

I have found that Claude Code is better in every way I've used it. I like to use LLM's just as an advanced refactoring tool, especially where plain string search isn't enough. Anyway, my first experience of Copilot was it plainly lying that it deleted files I asked it to, and it insisted the file no longer existed (it did).

The difference between the two is stark.