What makes Perplexity different
Every answer is grounded, so the question is never whether it will search, only which pages it will pick. It also shows more sources per answer than most assistants, which lowers the bar to appear at all.
- PerplexityBot builds Perplexity's index and is documented as respecting robots.txt; it is not used to train foundation models
- Perplexity-User fetches pages a person asks about in a thread, and Perplexity says it generally ignores robots.txt because a human requested the page
- Sources display as numbered cards before the answer text, so a title and a clean domain affect whether anyone clicks
- It leans on recent material for news, product and pricing questions, which rewards visible dates and changelogs
- Focus modes such as academic or social narrow the source pool, so the same brand can appear in one mode and vanish in another