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Brave Leo vs MaxAI: catalog facts
Brave Leo	MaxAI
Free Built into the Brave browser, which is free to download.	Freemium Free to install, with paid plans on the pricing page.
Windows, macOS, Linux, Android, iOS	Web, Browser extension
Works on the page you are reading without copying text No account needed, and chats are not kept for training	Works on the current page from a sidebar Access to several AI model providers
Only available inside the Brave browser	Page content is sent to cloud AI services No Firefox extension listed
Downloadable app	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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