Depends on who these humans you're comparing AI code to. I've seen and reviewed enough AI code in the last few months to have formed a solid impression that it's "ok" at best and relies heavily on who guides it - how well spec defined, what kind of rules are set, coding styles, architecture patterns.
The prompt user is basically selecting patterns from latent space. So you kind of need to know what you're looking for. When you don't know what you're looking for that's when the fun begins, but that's a problem for the next quarter.