Perplexity

Perplexity has earned its reputation as the gold standard for AI-powered research. Unlike traditional search engines that give you links to sift through, Perplexity provides direct, synthesized answers with every claim linked to verifiable sources. Features include transparent source citations, an organized library for saving searches in Collections, and collaborative discovery. The platform leverages RAG and vector search to deliver accurate, source-cited answers. Perplexity processed 780 million search queries in May 2025 and provides access to multiple AI models including GPT-4o, Claude, and Llama for different use cases.