Design Arena maps visual style signatures for AI models' generated websites

Design Arena says it analyzed more than 64,000 websites generated by AI models and calculated one visual style vector per model.

It reports that OpenAI's outputs lean toward cream backgrounds with italic serif type, Anthropic's toward dark backgrounds with glowing purple accents, Google DeepMind's toward navy dashboards with sidebars, and Meta's toward loud, magazine-style blocks. The findings come from Design Arena's own analysis, and the report does not describe the methodology or independent verification.