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PaperQA2 vs Scite: catalog facts
PaperQA2	Scite
Free Free and open source under the Apache 2.0 licence; model API usage may cost extra.	Freemium Check the site for current plans and trial terms.
Command line	Web, Browser extension
Answers include citations to the source documents Fetches paper metadata with citation counts and retraction checks	Shows whether later work supports or contradicts a finding Full-text search across licensed publisher content
Needs a language model, either through an API or run locally Setup and tuning assume comfort with Python	Web service, needs an internet connection Plan details are not given on the homepage
Downloadable app	Web application, Browser extension
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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