A whole cyberpunk city with flying cars, generated from one request. A creator says they asked Claude Opus 5.5 to build it with three.js, as detailed as possible.

Per the creator, the scene was made with Opus 5.5 and three.js, and the clip shows a camera flying through dense city blocks with glowing traffic lanes overhead.

Why it matters: detailed real-time 3D worlds used to need teams of artists and engineers, and now a single prompt can produce a playable starting point.

Credit: @buildwithsid https://x.com/buildwithsid/status/2114004943996846516/video/1