Perplexity is an AI-powered answer engine that delivers real-time responses to queries while analyzing files, generating images, and creating content pages. Popular among researchers, academics, and problem-solvers, it shines in complex research tasks with its ability to provide in-depth answers and access to academic sources. Users can choose from various AI models, upload unlimited files for analysis, and get their websites indexed in Perplexity's Knowledge Graph, making it particularly valuable for content creators and website owners.