I would not say it is “very good” at that. Maybe it’s “capable,” but my (ample) experience has been the opposite. I have found the more exact I describe a solution, the less likely it is to succeed. And the more of a solution it has come up with, the less likely it is to change its mind about things.

Every since ~4o models, there seems to be a pretty decent chance that you ask it to change something specific and it says it will and it spits out line for line identical code to what you just asked it to change.

I have had some really cool success with AI finding optimizations in my code, but only when specifically asked, and even then I just read the response as theory and go write it myself, often in 1-15% the LoC as the LLM