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Local Deep ResearchSurfSense
Free

Free, with source code published on GitHub; cloud model providers may charge.

 Free

Free and open source to self-host.

Self-hosted Web, Self-hosted
  • Works with local models or cloud providers
  • Searches arXiv, PubMed and more than ten other sources
  • Can run air-gapped with your data kept private
  • Answers questions over your own documents and connected sources
  • Good results with local models need a capable GPU
  • Self-hosting setup is more involved than a hosted service
  • Requires setting up and maintaining your own server
  • Fast pace of change can mean frequent updates
Self-hosted Self-hosted
Open source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 24, 2026

Checked September 26, 2026

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