Comment by epihelix

> How does an AI know what "AI slop" is?

The point is, it doesn't. As the prompt says, there are a few default styles, and without design guidance the model just chooses one at random:

Asked for frontend work without design direction, Claude Opus 5.5 falls back on a few default styles, and a general instruction such as "avoid a generic AI look" mostly swaps one default for another.

In other words, in response to "avoid a generic AI look", enforce the exact opposite of that user prompt and literally choose a generic AI look. Which I must admit, I kinda love. Meet low effort prompting with low effort results. "Oh, you didn't like this generic style? Try this other generic style on for size. You're gonna love it!"

(But why only "mostly swaps"? Is Anthropic letting an occasional lucky user hit novel AI design gold?)