Best AI tools for free search & research (2026)
Our top 4 picks for free search & research, compared on price and features — 4 with a free tier.
AI Search & Research
Free tier
Perplexity
AI answer engine that cites its sources for every claim.
$20/mo (Pro)
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AI Search & Research
Free tier
NotebookLM
Google's AI notebook that reasons over your own documents.
Free
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AI Search & Research
Free tier
You.com
AI search engine with cited answers and multiple models.
$15/mo
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AI Search & Research
Free tier
Elicit
AI research assistant for finding and summarizing papers.
$12/mo
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