Quality assessment of artificial intelligence responses in erectile dysfunction: a comparative study based on EAU recommendations.

Significant performance differences were observed across all domains (all p < 0.001).

Lower composite scores were observed for Copilot - Smart GPT-5 [3.73 (3.40-3.87)] and Perplexity Pro [3.60 (3.47-3.80)].

Domain-level analysis showed consistently high median scores (≥ 4) for factual accuracy among top-performing models, whereas variability was more pronounced in clarity, structure, and clinical utility.