AI answer engine with cited, real-time web search and research modes.
Perplexity is an AI-powered answer engine that combines LLMs with real-time web search to return cited, sourced answers. It offers focused research and deep-research modes, an API (Sonar), and a browser, with a free tier and a Pro subscription unlocking frontier models and higher limits.
Free tier; Perplexity Pro $20/month ($200/year); Enterprise/Max tiers and the Sonar API billed separately.