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ChatHub vs Arena: catalog facts
ChatHub	Arena
Freemium Free to start, with a subscription for access to all models.	Free The site shows no paid plan; chatting and voting are open to visitors.
Web, Browser extension	Web
Compares answers from several models at once One subscription covers many chat and image models	Compare answers from different models on the same prompt Public leaderboard built from community votes
Full model access requires a paid subscription Depends on third-party model providers	Prompts are sent to third-party AI providers Responses may be inaccurate, as the site itself notes
Downloadable app, Web application, Browser extension	Web application
Closed source	Closed source
License not stated	License not stated
Account 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 26, 2026

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