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Genspark AI Browser vs Vessel Browser: catalog facts
Genspark AI Browser	Vessel Browser
Free Free to download, with free on-device AI models.	Freemium Open source; Vessel Premium costs $5.99 per month with a 7-day trial.
Windows, macOS	Windows, macOS, Linux
AI agent and autopilot mode for multi-step web tasks On-device AI models that run without an internet connection	AI actions shown in a real browser window with approval steps MCP control for external agent tools
macOS version requires macOS 15 or later Closed source	Early software, not recommended for sensitive accounts Linux is the only mature install target
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
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 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.