Perplexity

Perplexity is an AI-powered answer engine that combines large language models with real-time web search to provide sourced, up-to-date responses. It represents a new paradigm of search where AI synthesizes information rather than just returning links.

For developers, Perplexity offers: pplx-api for programmatic access to their search-augmented models, Sonar models optimized for search tasks, and real-time web grounding that reduces hallucination. Responses include citations to sources, enabling verification and trust.

Perplexity is valuable for AI engineers building applications that need: current information beyond training data cutoffs, source attribution for claims, research and information synthesis, and grounded responses without building custom RAG infrastructure. The API enables integrating Perplexity's capabilities into custom applications.