Perplexity AI is a pioneering software company founded in 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski. It specializes in developing a sophisticated web search engine that leverages large language models to provide direct, context-aware answers to user queries. This innovative approach positions Perplexity as an "answer engine," distinct from traditional search engines by focusing on conversational responses supported by real-time web data and source citations[1][4]. **History and Key Achievements:** Perplexity has quickly gained recognition for its cutting-edge technology, integrating multiple large language models, including GPT-4 and proprietary models. This allows users to select the best model for their needs, enhancing research quality and scope[3]. The company has made significant strides in offering real-time coverage for live events, such as sports and elections, by integrating data feeds and structured information[5]. **Current Status:** As of July 2025, Perplexity AI was valued at $18 billion, reflecting its rapid growth and potential in the AI sector[1]. Despite legal challenges related to content use and copyright infringement, Perplexity continues to innovate, expanding its capabilities through strategic acquisitions, such as the integration of Carbon to connect AI systems with external data sources[5]. **Notable Aspects:** Perplexity's platform is notable for its hybrid approach, combining the strengths of AI chatbots and search engines. It offers a personalized search experience with features like document importation and image generation, making it a valuable tool for research and content creation[5]. However, the company faces increasing competition from tech giants like Google and Microsoft, which are also developing AI-powered search tools[4]. Despite these challenges, Perplexity remains a leader in the AI search space, continuously evolving to meet user needs and stay ahead in the global AI race[3].