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Claude vs Pi: catalog facts
Claude	Pi
Freemium Free tier with usage limits, plus paid subscription plans.	Free Sign-up is free; the research does not mention paid plans.
Web	Web
Large context window for long documents Strong at coding and analysis	Conversational tone suited to talking things through Runs in the browser with nothing to install
Runs only as an online service Free tier has usage limits	Can make factual mistakes Aimed at conversation more than research or coding work
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
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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