GPT vs DeepSeek vs Gemini Argon: one ball, three animations

Description and use

<p>I gave <strong>GPT-6, DeepSeek V4.1 Flash 1017 and Gemini 4 Argon</strong> the same little task: one amber ball bouncing inside a rotating cyan hexagon. 🧪</p> <p>Same starting position. Same gravity. Same controls. I kept each model's HTML untouched and replayed the results side by side.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fqaypysghkzo0dxjux4jk.gif" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheigh

Problem

<p>I gave <strong>GPT-6, DeepSeek V4.1 Flash 1017 and Gemini 4 Argon</strong> the same little task: one amber ball bouncing inside a rotating cyan hexagon. 🧪</p> <p>Same starting position. Same gravity. Same controls. I kept each model's HTML untouched and replayed the results side by side.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fqaypysghkzo0dxjux4jk.gif" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheigh

Outcome

<p>I gave <strong>GPT-6, DeepSeek V4.1 Flash 1017 and Gemini 4 Argon</strong> the same little task: one amber ball bouncing inside a rotating cyan hexagon. 🧪</p> <p>Same starting position. Same gravity. Same controls. I kept each model's HTML untouched and replayed the results side by side.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fqaypysghkzo0dxjux4jk.gif" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheigh

Evidence

GPT vs DeepSeek vs Gemini Argon: one ball, three animations

Source