Perplexity AI

Free tier

AI-powered search engine that answers questions with cited, up-to-date sources.

Free tier available·All audiences·Powered by Perplexity / OpenAI / Anthropic·API available

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Key strengths

real-time web searchcited sourcesSonar APIfollow-up questions

Free tier + paid plans · from $20 USD/mo

San Francisco, US

Founded 2022

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Grounded RAG: use Sonar as the retrieval step instead of building your own web scraper
Competitive intelligence: automated daily summaries of competitor news
Research pipelines: chain Sonar queries to gather data for analysis agents
Fact-checking: verify claims with citation-backed responses

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