There are currently quite good UI tools for AI, but there’s no doubt that creative and attractive design should be the work of a human (if you’re looking for originality). This, of course, depends a lot on what your website offers.
But UX and navigation flows? AI still has many limitations. I’ve been working on a fairly complex website for about eight months and I’ve lost count of how many times AI has failed at UX.
UX is a human touch… it’s up to you!