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Perplexity Comet vs BrowserOS: catalog facts
Perplexity Comet	BrowserOS
Freemium A free tier is available. Full agent features require a Perplexity subscription.	Free Free and open source.
Windows, macOS	Windows, macOS, Linux
Assistant can act on pages, not only summarise them	Built-in AI agents that act on web pages Can use local models instead of a cloud service
Requires a Perplexity account, and an agent acting on logged-in sites carries real risk Closed source	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
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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