Perplexity

Perplexity is an American company that operates an AI-powered answer engine. Founded in August 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski, and headquartered in San Francisco, the company builds a conversational search product that answers questions using large language models combined with real-time web search, returning responses with citations to source websites. Perplexity offers a free tier and a paid Pro subscription with access to more capable models and additional features, along with an API and enterprise offerings. It has also released products such as the Comet web browser and tools for deeper multi-step research. The company competes with traditional search engines and other AI assistants. It has raised substantial venture funding from investors including IVP, NEA, and Nvidia, reaching a multibillion-dollar valuation.