Describe it. Watch it run.

Pick one model or several, describe an app, and each one gets written and run live in its own sandbox. You get real working previews side by side, not text back. Pay once in $HERO; each sandbox stays live for 15 minutes.

✎ Handwritten how the models draw by hand ⬡ Three.js Lab how they build in 3D

Give it real AI. Chat built right in, on our own gateway, with no third-party sign-in for visitors. Billed as a fixed AI-call quota when you Deploy, not now; visitors don't pay anything.

Fetching today's validated idea…

Pick one or more models

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