Perplexity Ai
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Perplexity Ai

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Description

Perplexity AI , or simply Perplexity , is a web search engine that uses a large language model to process queries and synthesize responses based on web search results. With a conversational approach, Perplexity allows users to ask follow-up questions and receive answers with citations of their sources from the internet.

Perplexity AI, Inc. was founded as a privately held company in 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski. It launched its flagship search engine on December 7, 2022, and has since released a Google Chrome extension and an app for iOS and Android. As of June 2025, the company was valued at US$14 billion. It currently has around 700 employees, and is headquartered in San Francisco, California, United States.

A free and public version is available, but the paid Pro subscription allows users to choose from a variety of more advanced models, among other features.