Multi-ball Heptagon Physics

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Multi-ball Heptagon Physics

A one-shot physics simulation comparison between Gemini 3, GPT-5.1, and Claude Opus 4.5.

byAlex Prompter

Ball in a Spinning Hexagon challenge

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Description

A browser-based physics simulation featuring 20 uniquely colored and numbered balls bouncing inside a spinning heptagonal container. The project demonstrates one-shot coding capabilities by generating the entire simulation — including gravity, wall collisions, and animations — within a single HTML/CSS/JS file.

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Details

Why this is interesting: A direct comparison of frontier model coding capabilities using a non-trivial physics simulation challenge and a…
Attributed to: @alex_prompter
Built with: Opus 5 Grok 4.5 K2.7 Code North Mini Code Opus 4.8 Opus 4.7 LTX 2.3 Pro 3.1 Pro Opus 4.6 Vidu Q3 Pro Seedream 5.0 Pro Seedance 1.5 Pro Seedream 4.5 Flux 2 Pro Nano Banana Pro Codex
Tags: #physics #simulation #one-shot #canvas

Discovered: X
First posted: X · Nov 30, 2025
Listed: Added 3h ago
Build: Strong
Models: Moderate

Prompt

Multi-ball heptagon physics
Write html, css, and javascript to display 20 balls bouncing inside a spinning heptagon. each ball should have a unique color, a number label, gravity, and collision detection with the walls. all code in one file.

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