- Real-time web search with cited sources
- Free tier fully functional for most users
- Spaces for collaborative research
- Maintains context across follow-up questions
- Occasionally cites paywalled sources
- Not a writing tool — outputs need reformatting
- Pro features require $20/month
The search tool that replaces a Google tab for research
Perplexity is the most useful AI tool for research tasks — it answers with cited, current sources rather than training-data guesses. The free tier handles most use cases.
Perplexity launched in 2022 as the AI answer engine. In 2026 it is the tool to reach for first when you need to understand something quickly and accurately.
What We Tested
We tested factual accuracy on 60 verifiable questions, source quality on 20 research topics, real-time data on 20 current-events queries, and citation reliability across all results.
What Works
Citations are the key differentiator. Every answer links to the exact source — a specific URL with the relevant passage highlighted. You can verify claims in seconds.
Real-time data means Perplexity answers questions about last week news, current prices, and recent launches accurately.
Follow-up questions maintain full context correctly across a research session.
What Does Not Work
Paywalled sources appear in citations regularly without warning.
It is a research tool, not a writing tool — outputs need reformatting before publishing.
Pricing
Free: unlimited basic searches. Pro: $20/month ($200/year) — GPT-4o, Claude, file uploads, 600 Pro searches/day.
Best For
Researchers, journalists, and anyone who uses Google + ChatGPT in parallel for research.
Not For
Tasks needing long-form document generation — use a writing tool after researching.