Describe a mini-app. The code streams in and runs instantly in a sandbox — on your GPU for free, or through your own OpenRouter key for bigger models like Kimi.
Sandboxed preview — generated code can't touch this site or your data · BYOK calls go browser → OpenRouter directly, your key never touches our servers · Free OpenRouter models have daily caps set by OpenRouter
You describe an app in plain words — 'a pomodoro timer with a dark theme' — and it writes the code and runs the result live in the browser, where you can keep refining it by talking.
No. It can run on a local model on your GPU for free. If you want a stronger model, plug in your own OpenRouter API key — your key, your billing, your choice.
For the free local-model mode: Chrome, Edge or Brave with a GPU, since the model runs on WebGPU. With your own API key it's lighter on hardware.
You do, fully. Copy it out and use it anywhere — no license strings, no watermark comments.