Companies and Brands
Perplexity AI
Information Technology
Citation Formats
General Reference
APA Style
BibTeX
Perplexity AI is an American privately held software company headquartered in San Francisco, California, founded in August 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho and Andy Konwinski. The company offers a web search engine that combines large language models with real-time web search to synthesize sourced answers to user queries, available through a free tier and a paid Perplexity Pro tier that adds access to more advanced language models, document search and API access. Its search infrastructure, called Sonar, is built on the Llama language model developed by Meta, and was processing approximately 30 million queries a day as of mid-2025.
Sources
Reader Challenges (0 open reader challenges)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.
View At A Past Year
The atlas records no dated fact of its own for this entry, so there is no other year to choose.