Perplexity
AI search engine that answers questions with numbered sources you can click and verify.
What is Perplexity?
Perplexity works like a search engine that writes the answer for you. Every answer shows numbered sources, so you can open the original pages and check the facts. It is a good replacement for typing a question into a regular search engine and opening ten tabs.
AI search engine that answers questions with numbered sources you can click and verify.
Research with citations
Perplexity has a free plan with usage limits, and paid plans add more.
How to start for free
- Open perplexity.ai; you can search without an account.
- Ask a full question rather than a few keywords.
- Click the numbered sources to verify important facts.
Strengths
- Every answer comes with sources
- Fast for research and fact-finding
Limits to know
- Pro searches are limited on the free plan
- Sources can include low-quality sites, so check them
Learn more
The Best Free AI Tools for Students in 2026, Free AI Tools for Writing Articles That Rank and Read Well
Free plans and limits change often. Check the current details on the official Perplexity website before relying on it for important work. Last reviewed October 2026.