This has also been my experience. I do find it takes a review pass with a direction including things like "make sure text isn't overlapping." "Make sure text isn't overflowing out of buttons" - I find that's a really common one.
replyAny chance you could share screenshots?
replyEven the example apps in the post seemed like AI slop to me. Common markers are too noisy/busy (mainly repeated or rephrased information). Text being a bit too big (Codex-only?).
Yes in my experience, AI designs might look okay on first glance but when you really start to look you start to see strange and inconsistent things. Similar to looking at generated code.
replyYou can have it fix these things. It has the tools to analyze screenshots of the app and correct things like formating, alignment, color, etc.
replyI've been building a personal app with Opus 4.8 over the past two weeks and the design is excellent. I provided it with screenshots of what I wanted, then had it build out a gallery of functional UI elements (like designers do). Claude built out a tool that would screenshot the app, compare it to the design screenshot and automatically reposition elements or update the styles to match.
You can also provide it with a style guideline prompt and have it double check all the work it produced matches the UI style guidelines before committing.