Ask a research question; it breaks it down, searches papers, follows citations and explains why each paper is relevant, and can build a cited summary of the literature. You decide what to read.
Best forUniversity and graduate students who want a free way to find papers and understand a field.
FreePrices as of 2026-10-26; check the official site
+Finding papers and generating reports use no credits, and Ai2 says credits are never charged
+Every claim in a summary has a clickable citation, so you can check the original
Watch out for
!Ai2's terms require users to be 18 or older
!AI summaries can be wrong, so read the original paper before citing; treat summaries as a starting point and write your papers yourself
Price
Free. Sign-up gives a one-time 1,000 credits; finding papers, generating reports and analysing data use no credits, and you can request 100 more when below 120. Ai2 says credits only track usage and are never charged.Price sourcesasta.allen.ai
Made by
Ai2 (Allen Institute for AI)
Where it works
Check the official site; some regions, including mainland China, may not have direct access
Languages
See the official site
Data and privacy
Ai2's terms require users to be 18 or older; the Asta home page says your queries and interactions may be used by Ai2 for AI training and research.