Perplexity
An AI-powered search engine with live cited answers, Deep Research and multi-turn follow-ups; the Comet AI browser is free since March 2026. Independent company (about a $20B valuation).
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In-Depth Review
Perplexity Review: AI Search EnginePerplexity is an AI-powered search engine that answers questions with live source citations, useful as a complement to traditional search, with deep research and multi-turn follow-ups. The company is independent (about a $20B valuation, raised September 2025; ~45M monthly users, $200M ARR). Its Comet AI browser became free in March 2026. Compiled from official and public sources; specs and pricing per the official site and subject to change (verified 2026-06-06).Core featuresCited answers: answers cite source links for verification.
Comet browser: an AI browser, free since March 2026 (agentic search, page summaries, etc.).
Deep Research: multi-step research and synthesis.
Multiple models: choose among underlying models.ExperienceFast for looking things up and research, with sources; use Deep Research for in-depth topics.PricingSubscription (USD): Free $0, Pro $20/mo ($200/yr), Max $200/mo, Enterprise $40/seat; plus the Sonar API (per-token). Pricing per the official site; currency varies by region and is subject to change (perplexity.ai).Who it's forIndividuals, researchers and teams who need fast cited verification, research and follow-ups.Bottom linePerplexity excels at cited search and Deep Research, and the Comet browser is now free; plans and prices per the official site.
Pros & Cons
Pros
- Real-time web search with citations
- Clear and well-organized answers
Cons
- Less deep analysis than Claude
- Free tier has daily limits
Best For
Users needing quick fact-checking and research
FAQ
An AI search engine that answers with live source citations, good for verification and research, with Deep Research and follow-ups.
The Comet AI browser is free since March 2026 (agentic search, page summaries, etc.); Comet Plus premium content is separate (per the official site).
Free $0, Pro $20/mo, Max $200/mo, Enterprise $40/seat; plus the Sonar API. Per the official site; subject to change.
No, independent; about a $20B valuation (raised September 2025).
Individuals, researchers and teams who need fast cited verification, research and follow-ups.