Perplexity, an AI-powered search engine, has gained buzz in the tech world, with investors like Jeff Bezos and Institutional Venture Partners funding the company. Perplexity, a year-old search engine, uses A.I. to write a summary of what it finds, annotated with links to the sources used. It has been tested on hundreds of queries, including current events, shopping recommendations, and household tasks. Perplexity's desktop interface resembles Google's, but it uses A.I. Perplexity, a search engine based on OpenAI's GPT-3.5 and A.I. models, is ideal for complex or open-ended searches but lacks a profitable business model and Google's other products. Perplexity, a small start-up aiming to challenge Google's search engine, may make mistakes and generate higher-quality traffic, potentially benefiting digital publishers through targeted queries.