All terms
Models & Products
Perplexity AI
An answer engine that synthesizes responses from real-time web sources with citations.
Definition
Perplexity AI is the main product of Perplexity, Inc., functioning as an answer engine: users ask questions in natural language and receive direct answers synthesized from real-time web sources, with inline citations to the original content. It combines its own retrieval systems with large language models from several providers, and adds features for multi-step research, organizing projects, and agentic browsing. The emphasis is on cited, current answers rather than open-ended chat.