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Asta vs Consensus: catalog facts
Asta	Consensus
Free Offered by Ai2 as a research project; no paid plans are listed.	Freemium Check the site for current free and paid plans.
Web	Web
Large corpus of 108M+ abstracts and 12M+ full-text papers Built by Ai2, the institute behind Semantic Scholar	Searches peer-reviewed literature rather than the open web Answers backed by scientific papers
Web only Little detail about features is available on the homepage	Web only, needs an internet connection Plan details are not given on the homepage
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.