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Vessel Browser vs Tabbit: catalog facts
Vessel Browser	Tabbit
Freemium Open source; Vessel Premium costs $5.99 per month with a 7-day trial.	Freemium Free to download and try; paid plan details are not given on the homepage.
Windows, macOS, Linux	Windows, macOS
AI actions shown in a real browser window with approval steps MCP control for external agent tools	Agent mode for multi-step tasks in the browser Many AI models from different providers
Early software, not recommended for sensitive accounts Linux is the only mature install target	Relies on cloud AI models No Linux version
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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