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Perplexity
AI search that answers with sources — now with the Comet browser.
Freemium 4.6WebiOSAndroidDesktop (Comet browser)
What is Perplexity?
Perplexity is an AI answer engine that researches the web and cites its sources, making it great for quick, trustworthy research.
Its Comet browser (2.0, August 2026) adds an agentic mode that can research across tabs, compare prices and fill forms for you — asking for your confirmation before anything final.
Pros
- Cited, sourced answers
- Good free tier
- Fast research
- Comet browser automates multi-step tasks
Cons
- Pro features need a subscription
- Comet's deeper agent tasks need Perplexity Pro