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Sigma AI Browser vs BrowserOS: catalog facts
Sigma AI BrowserBrowserOS
Free

Described by the developer as a free browser.

Free

Free and open source.

Windows, macOS, Android, iOS Windows, macOS, Linux
  • Built-in AI agent that acts on web pages
  • Local Eclipse LLM keeps prompts on the device
  • Built-in AI agents that act on web pages
  • Can use local models instead of a cloud service
  • Cloud AI features send data off the device
  • Developer and licensing details are not clearly stated
  • Agent features are new and still changing quickly
  • Local models need capable hardware to run well
Downloadable app Downloadable app
Closed source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 24, 2026

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