Perplexity

Perplexity (operating at perplexity.ai) is an AI-powered answer engine platform engineered for real-time, accurate, and source-backed information retrieval. Founded in 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski and headquartered in San Francisco, California, Perplexity redefines search by prioritizing clarity and credibility over traditional keyword-driven results. Unlike conventional search engines that rely on static rankings or paid placements, Perplexity leverages cutting-edge AI models from OpenAI, Anthropic, and Meta to dynamically generate concise, contextually precise answers—complete with inline citations and up-to-date references. This allows users, from researchers to casual learners, to cut through noise and access verified insights instantly. Backed by a reported $165 million in funding and valued at over $20 billion as of 2025, the company has rapidly scaled its mobile and web applications to deliver a seamless cross-device experience.