World class? Then what am I? I frequently work with Copilot and Claude Sonnet, and it can be useful, but trusting it to write code for anything moderately complicated is a bad idea. I am impressed by its ability to generate and analyse code, but its code almost never works the first time, unless it's trivial boilerplate stuff, and its analysis is wrong half the time.

It's very useful if you have the knowledge and experience to tell when it's wrong. That is the absolutely vital skill to work with these systems. In the right circumstances, they can work miracles in a very short time. But if they're wrong, they can easily waste hours or more following the wrong track.

It's fast, it's very well-read, and it's sometimes correct. That's my analysis of it.