Create a low-poly 3D horse running in a seamless loop using Three.js. Build it procedurally from primitive geometry, animate the legs, body, head, and tail, and return a single self-contained HTML file.
Make it yours. Change "a low-poly 3D horse running" and "animate the legs, body, head, and tail" for another animal or object and its moving parts. Keep "Build it procedurally from primitive geometry" and "return a single self-contained HTML file" to compare models on equal terms.
Low-poly horse loop across GPT-6.1 levels
An 8-second side-by-side of a low-poly horse, built from primitives and running in a Three.js loop, from the same one-sentence prompt on GPT-6.1 Sol at four reasoning levels and on GPT-6 Sol at Very High. The creator found 6.1 clearly better.
- GPT-6.1 Sol
- GPT-6 Sol
- Three.js
- 3m to 18m
How it was made
The creator ran the same prompt on each model and reasoning level and recorded the results side by side; each returns one self-contained HTML file. The cards in the video list each run: GPT-6.1 Sol at Light (2 min 56 sec, 4,418 triangles), Medium (7 min, 8,928), High (5 min 56 sec, 3,190), and Very High (17 min 53 sec, 5,352), and GPT-6 Sol at Very High (7 min 42 sec). The creator ran the same prompt across Claude effort levels in an earlier r/ClaudeAI post. The interface used isn't named.
1% to 6% of a 5-hour usage limit per run, per the cards in the video
Posted Oct 1, 2026 · r/OpenAI on Reddit · 14 upvotes · 12 comments
Prompt from: Comment by the creator
Look notesby Reference
Five side-by-side panels of the same low-poly chestnut horse in mid-gallop, one per model and reasoning level, each over a card of stats.
- Color
- Chestnut-orange faceted horses with dark manes and hooves on cream, sand, and pale sage backgrounds, in near-black panels with lime-green borders and labels.
- Type
- Bold white model names with the reasoning level in lime (GPT-6.1 SOL Light through GPT-6 SOL Very High), and small grey caps over white values for model, time worked, 5-hour and weekly limit used, reasoning, and triangle count.
- Framing
- A wide frame split into five equal vertical panels: the title at the top, the horse in profile on a soft floor with its shadow in the middle, and the stats card at the bottom. A screen-recording toolbar shows at the bottom of one frame.
- Structure
- The same five panels throughout; across the frames only the horses' leg positions change, and the stats stay fixed.
