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DeepSeek HarnessPyGPT
Free

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

 Free

Free and open source; cloud models are billed by their providers through your own API…

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
  • One app for many cloud providers and local Ollama models
  • Agents, MCP tools, plugins and file RAG built in
  • Preview release with several features marked experimental
  • macOS build listed for Apple silicon only
  • Large feature set can be overwhelming
  • Cloud models need your own paid API keys
Downloadable app Downloadable app
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 Not stated if it works offline

Checked October 2, 2026

Checked September 26, 2026

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