Web design in December: Claude Opus 4.5, or Gemini 3 Pro
- Authors
- Name
- Peter Hartree
- @peterhartree
Claire Vo asked Claude, Gemini and ChatGPT to redesign her blog.
She used the following prompt in Cursor:1
Redesign this blog to improve both the visual appeal and UX. Also add best practices for SEO and navigation.
Claude won by a decent margin.
Gemini did fine, and ChatGPT's performance—which would have amazed me a few months ago—was just "meh" by comparison.
Claire shipped the redesign on the same day.2
Original input
Her current blog looked like this:
Claude 4.5 Opus
Claude's one-shot:
Gemini 3 Pro
Visual design reasonable, but problems in the details. The one-shot was less "finished" than Claude's—it just didn't "keep going until it's done" in the way that Opus 4.5 is so willing to do.
GPT-5.1
Design logic is weak. Major visual issues. Only half built.
Appendix 1. Watch the screencast
If you'd like to understand the differences in more detail, watch the full screencast:
How I AI is consistently good.
Footnotes
This is a lazy prompt—not best practice. But ideally, things should just work, even with lazy prompting. Claire used Cursor, rather than the official CLIs, which may distort things. ↩
Claire's results are consistent with my own vibe checks, though Twitter has not reached consensus between Gemini and Claude. ↩