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Monica vs ChatGPTBox: catalog facts
Monica	ChatGPTBox
Freemium Free to start, with paid plans listed on the pricing page.	Free Free and open source; model providers may charge for API use.
Windows, macOS, Android, iOS, Web, Browser extension	Browser extension
Several AI model families in one interface Works in a sidebar on any webpage	Works on any web page Open source with an active community
Browser extension covers Chrome and Edge only All processing happens on hosted servers	Needs access to a model provider such as ChatGPT or an API Repository moved, so older links point to the previous owner
Downloadable app, Web application, Browser extension	Browser extension
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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