Free tierAsk a patent question in plain language and follow the cited trail.
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Research & Data Checked Aug 19, 2026
Perplexity AI
Get a concise web-backed answer with sources to inspect.
Best for: People researching a current question, comparing options, or needing a cited first pass quickly.
What you can do with it
- Compare products or services
- Find current facts with sources
- Build a quick research brief
- Ask follow-up questions about a topic
- Search the web without opening many tabs
Good to know
- Citations are central to the experience
- Practically unlimited basic searches
- Fast comparison workflow
- Useful for current questions
Limitations
- Advanced search caps are real
- Free uploads are limited
- Sources still need opening and checking
Other official links
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