Perplexity.ai

Perplexity AI is a search and conversational AI tool that combines large language models (LLMs) with search capabilities. When a user submits a query, it:

1. Searches the web – Uses online sources and databases to retrieve up-to-date, relevant information.
2. Analyzes responses – Combines information from multiple sources, verifies it, and synthesizes it into a clear output.
3. Cites sources – Unlike some other AI chatbots (e.g., ChatGPT), it often includes links to its sources.
4. Uses a language model – It has its own LLM (similar to OpenAI’s models but optimized for search and summarization).

It is thus a hybrid AI that aims to provide the most accurate answers possible by combining generative AI and web search. A paid version with more advanced features is also available.