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Kai 9000Witsy
Free

Free and open source under Apache-2.0; cloud providers may charge for their own API keys.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Windows, macOS, Linux, Android, iOS, Web Windows, macOS, Linux
  • Works with many AI providers and falls back between them automatically
  • Offline Gemma 4 models on Android and desktop
  • Works with local model servers as well as cloud APIs.
  • Cloud providers need your own API keys
  • Background autonomy and shell access need careful configuration
  • Cloud connections require your own provider credentials.
Downloadable app, Web application Downloadable app
Open source Open source
License: Apache-2.0 License: AGPL-3.0
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked September 22, 2026

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