
AI-powered answer engine for real-time, cited information and advanced research.

Real-time, web-grounded AI models and API for generative search.
Perplexity AI: AI-powered answer engine for real-time, cited information and advanced research.. Sonar by Perplexity: Real-time, web-grounded AI models and API for generative search.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Perplexity AI is freemium and Sonar by Perplexity is freemium.
The best choice between Perplexity AI and Sonar by Perplexity depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Both are primarily designed for individuals. The choice depends on which specific features you need.
Perplexity AI offers: Real-time answers with cited sources, Perplexity Computer for autonomous, multi-model AI workflows, Access to advanced AI models (GPT-5.1, Claude Opus 4.5, o3-pro, etc.), File upload and analysis (PDFs, spreadsheets, reports). Sonar by Perplexity offers: Real-Time Web Search with Verified Citations, Chain-of-Thought Reasoning (Sonar Reasoning Pro), OpenAI Client Compatible API, Flexible Sonar Models (Sonar, Sonar Pro, Sonar Deep Research).
Based on our data, Perplexity AI currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.