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ChatPDF vs PDF.ai: catalog facts
ChatPDF	PDF.ai
Freemium Free to use, with a paid Plus upgrade.	Freemium Pricing is not detailed in the research.
Web	Web
Answers cite the passages they come from Folders for chatting across several files	Chat and summaries for any PDF API for parsing, extraction and splitting
Documents are processed on a remote service Chat history is only saved after signing up	Documents are processed on a hosted service Pricing is not clear from the research
Downloadable app, Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

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