Perplexity

Perplexity is an AI answer engine rather than a chat companion: every response combines large language models with live web search and inline citations, so you can verify where each claim came from. It behaves like a research assistant that reads the internet for you and shows its work.

Focus modes let it target the web, academic papers or specific domains; Pro adds stronger model choice, file uploads and deeper research runs. For questions where freshness and sources matter more than creative flair, it routinely replaces a traditional search session entirely.