Perplexity AI Search Web search with AI-powered answers, deep research, and chain-of-thought reasoning. When to Use - Direct web search for ranked results (no AI synthesis) - AI-synthesized research with citations - Chain-of-thought reasoning for complex decisions - Deep comprehensive research on topics Models (2025) | Model | Purpose | |-------|---------| | | Lightweight search with grounding | | | Advanced search for complex queries | | | Chain of thought reasoning | | | Expert-level exhaustive research | Usage Quick question (AI answer) Direct web search (ranked results, no AI) AI-synthesi…