FAQ

Is Tyrn free?

Tyrn is currently a free beta. Model use is billed by the provider you connect, and Tyrn doesn’t charge for it.

Which harnesses and models can I use?

Tyrn has 39 built-in harnesses, including Claude Code, Codex, Gemini CLI and more. Models come from a subscription, an API key or a local model. See Connect models.

Does my code leave my computer?

Tyrn doesn’t send your code to Tyrn. Prompts and code go from your computer to the providers you choose. See Privacy.

Are Windows and Linux supported?

Linux, yes. Tyrn runs on Linux x86_64 and needs glibc 2.43 or newer (for example Ubuntu 26.04 or newer) and a GPU with Vulkan support. ARM is not supported yet. See Linux. Tyrn also runs on macOS with Apple silicon or Intel. Windows is planned.

Do sessions stop when I quit Tyrn?

No. Sessions run in the Tyrn backend, so closing the window or quitting the app doesn’t stop them. They stop if you choose Stop daemon or Restart daemon, or kill a session.

How do updates work?

Tyrn checks tyrn.dev hourly and when you choose Check for Updates. It installs only updates signed by the Tyrn developer team. Turn automatic updates off with "auto_update": false. See Settings.

Do I need an account?

No. Sign-in with GitHub is optional.

Where do I get help?

See Troubleshooting or email hi@tyrn.dev.