Perplexity

Perplexity AI, Inc. is an AI company based in San Francisco, founded in August 2022 by a team of engineers with expertise in AI and machine learning. The company reached unicorn status by April 2024 and achieved a valuation of $9 billion by December 2024 after securing significant funding from notable investors, including Jeff Bezos and Nvidia. The company's main offering is a conversational AI search engine that delivers direct, sourced answers using advanced large language models. Users can engage in multimodal searches by uploading images, PDFs, or text files. The platform provides various model options, with free access to GPT-3.5 and Pro subscribers utilizing more advanced models like GPT-4 Omni. Specialized modes cater to academic research, writing, math problem-solving, and entertainment. Perplexity also launched an Enterprise Pro version in April 2024, which includes enhanced security and collaboration features. The company serves over 10 million weekly active users and has partnered with several enterprise clients, including Zoom and Stripe.