AI search startup Perplexity AI revealed on Thursday that it raised $73.6 million in a series B funding round led by IVP and with support from investors including Nvidia, Bezos Expeditions Fund and Kindred Ventures. This is the second funding round for the AI startup since its founding in August 2022. The AI-powered search provider first raised $25.6 million in March. Perplexity is a conversational AI platform that tunes search queries with follow-up questions. However, compared to traditional AI chatbots, such as ChatGPT or Bard, and traditional Google search, Perplexity uses multiple LLMs, including Google Gemini, Mistral 7B, and OpenAI's GPT-4. It also uses its in-house model, Experimental. Perplexity Pro subscribers pay $20 monthly to switch between the different models and can access various features, such as image generation. Perplexity AI's fundraising success, which has the company valued at about $500 million, comes as many look for ways AI technology will change search.