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DeepSeek HarnessHermes Desktop
Free

Offered free as a public preview; model usage terms are not stated on the page.

 Free

Free and open source under the MIT licence.

Windows, macOS Windows, macOS, Linux
  • Plugin architecture lets you add tools, skills and interface parts
  • Agent can write and install its own plugins on request
  • Keeps memory across sessions
  • Writes and improves its own skills
  • Preview release with several features marked experimental
  • macOS build listed for Apple silicon only
  • Linux has no installer package and installs through the terminal
  • Autonomous agents need care with the access they are given
Downloadable app Downloadable app
Open 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 Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

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