I struggle to even remember the course grained details of things I've had AI do recently.

Conversely, there are 100k+ LoC codebases from years ago that I can still generally walk through in my mind's eye

I can look at a project I worked with others on a decade ago, and pick out which parts I wrote, which parts others wrote, remember pitfalls from this part, a struggle we had in that part, even if I have no memory of actually doing them.

I can't do that with a project we worked with AI on two weeks ago. It all just blurs together into "someone wrote a prompt and code came out".