Gummy Octopus Soft-Body Physics Interaction

A translucent gummy octopus you can grab, stretch, and squish in the browser. It's a single-file WebGPU build with all geometry generated procedurally, soft-body physics, suction cups that stay attached as the arms deform, refractive light-transmitting materials, and a minimal editorial control panel. The video compares Opus 5.5 and ChatGPT-6 Astra on the same prompt and estimates the API cost. About 18 seconds, suited to interactive effects and AI coding benchmark shorts.