Perplexity Pro Search is the advanced research mode within Perplexity AI that performs deep multi-source web research on complex questions, synthesizing information from dozens of authoritative sources into comprehensive, cited answers. It goes beyond basic search to analyze multiple perspectives, cross-reference sources for accuracy, and produce research-grade responses with full source attribution. Researchers, analysts, journalists, and professionals use Perplexity Pro Search to conduct thorough research in minutes that would otherwise require hours of reading and synthesis across multiple sources.