Perplexity AI is an AI search engine that wants to change the way we search online. It's super fast and gives you results right away. Perplexity makes searching better with handy features like links to check facts, the ability to flag wrong answers and suggestions for more searches. You can focus your searches on school research, writing, coding, YouTube, and more. Perplexity even lets you watch videos without leaving. Upload PDFs to use anytime. Turn on Copilot mode for an interactive search wi