The best AI research tools in 2026

The best AI research tools right now are Gemini Notebook (formerly NotebookLM), Perplexity and Elicit, out of 7 we have reviewed. Each is ranked by our rating, with its price, our verdict and who it suits.

Updated Oct 23, 2026 · Ranked from our reviews · How we review

1. 1
   G

   Gemini Notebook (formerly NotebookLM)

   For working from your own documents, Gemini Notebook is the strongest free tool going, and its opaque new compute limits are the price of that generosity.

   Best for: Students, researchers and analysts who need to understand and cite a defined set of their own documents.

   Price: Free; higher limits through Google AI Plus ($4.99/month, 2x), AI Pro ($19.99/month, 4x) and AI Ultra (about $100 or $200/month, 5x or 20x Pro). Included in qualifying Workspace editions; Enterprise version through Google Cloud.

   Read our Gemini Notebook (formerly NotebookLM) review
   4.6/5
2. 2
   P

   Perplexity

   Still the quickest route from a question to a page you can check, though the gap with free Google AI Mode is now a matter of habit more than capability.

   Best for: Students, researchers and professionals who want quick, sourced answers instead of a list of links.

   Price: Free; Pro $20/month ($200/year); Max $200/month ($2,000/year); Education Pro $10/month; Enterprise Pro $40/seat/month ($400/year), Enterprise Max $325/seat/month ($3,250/year). Comet browser free; API billed separately.

   Read our Perplexity review
   4.5/5
3. 3
   E

   Elicit

   Elicit turns hundreds of papers into a cited data table, but a peer-reviewed test put its extraction accuracy at 86.6%, so it belongs beside a human extractor rather than in place of one.

   Best for: Researchers, analysts and review teams who need to extract structured data from many academic papers.

   Price: Basic free (unlimited search and summaries, limited agent and reports); Pro $49/user/month billed annually ($588/year); Scale $169/user/month billed annually ($2,028/year); Enterprise custom. Extra usage on Pro and Scale in $100 increments up to a cap you set.

   Read our Elicit review
   4.3/5
4. 4
   G

   Google AI Mode

   AI Mode is the AI search most people will use simply because it is already in Google, and it is better at local shopping and travel than it is at showing its sources.

   Best for: Anyone who wants conversational answers to everyday questions without paying for a separate AI search tool.

   Price: Free in Google Search. Google AI Pro and AI Ultra ($100 or $200/month in the US) add newer models, higher limits and agents first. Developers pay $14 per 1,000 grounded searches via the Gemini API after 5,000 free a month.

   Read our Google AI Mode review
   4.3/5
5. 5
   C

   Consensus

   A fast, well-cited first pass at a research question that counts studies rather than weighing them, so the reading still falls to you.

   Best for: Students, clinicians and curious readers who want a fast evidence check on a research question.

   Price: Free (unlimited paper search, 3 Deep reviews/month); Pro $20/month or $144/year (15 Deep reviews/month); Deep $65/month or $540/year (200 Deep reviews/month); Teams and Enterprise custom. Up to 40% off for students and clinicians.

   Read our Consensus review
   4.2/5
6. 6
   U

   Undermind

   Undermind makes you wait minutes for the recall keyword search cannot deliver, and at $16 a month it is cheap enough to run before every literature review.

   Best for: Graduate students and researchers starting a project who need a thorough sweep of prior work.

   Price: Free (standard rate limits); Pro $16/month billed annually, about $20 monthly (10x Free limits); Team $15/person/month billed annually; Enterprise custom.

   Read our Undermind review
   4.2/5
7. 7
   S

   Scite

   Scite's Smart Citations are still the quickest way to see whether a finding has held up; nearly everything else it sells, Consensus and Elicit also offer.

   Best for: Academics, students and science writers who need to check how a paper has been received before citing it.

   Price: No free plan; 7-day trial that rolls into the chosen plan. Basic $12/month billed yearly ($144/year); Pro $40/month billed yearly ($480/year); roughly $20 and $50 on monthly billing, by the page's own savings figures. Enterprise custom.

   Read our Scite review
   4.0/5