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SurfSense vs STORM: catalog facts
SurfSense	STORM
Free Free and open source to self-host.	Free Free and open source; language model and search API costs are your own.
Web, Self-hosted	Command line
Can run air-gapped with your data kept private Answers questions over your own documents and connected sources	Produces long, cited reports from a single topic Multi-perspective questioning for broader coverage
Requires setting up and maintaining your own server Fast pace of change can mean frequent updates	Needs Python setup and API keys for models and search A research project, with limited polish for everyday users
Self-hosted	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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