Pelican riding a bicycle animation rendered by code, made with Claude Opus 5.5: Claude Opus launch video

In short

An animated "pelican riding a bicycle" video, a spatial-ability test that the author says was made with a code-only pipeline and no 3D models, textures, or audio files. The author says the pelican, bicycle, trestle bridge, sea, sky, and soundtrack are all computed by code. The author gives 1140 frames at 40 samples per frame; duration and aspect ratio are not stated.

Prompt

Reconstructed

每次一个新的模型出来呢,大家都让它去画 “鹈鹕骑自行车” 来判断这个模型的空间能力,基本上都是用 HTML、SVG 来画动画。当我实在看得都有审美疲劳了,我希望你能画一个最复杂、最精细、最精美的 “鹈鹕骑自行车”的动画视频,你可以用任何的技术,不用着急,画一天都可以。

How it was made

The author says the prompt was generated in one pass and the model is referred to as Opus 5.5. It wrote its own GPU ray-marching renderer, and all scene elements and the soundtrack are generated by code, with no 3D models, textures, or audio assets. The render used 1140 frames at 40 samples per frame. No controlling tool, time, or cost is stated.

Tools: Claude Opus

Why it works

Moves past the usual HTML/SVG approach by using a GPU ray-marching renderer, which the author presents as the basis for a more detailed scene.
Builds every element procedurally (pelican, bicycle, bridge, sea, sky) and generates the soundtrack in code, so the piece relies on no external assets.
Uses a high sample count (40 per frame) across 1140 frames, prioritizing visual quality over render speed, in line with the prompt's request for the most detailed version.
The prompt gives open latitude ('any technology', 'no rush') and a quality target (most complex, refined, beautiful), which pushes the output beyond the familiar benchmark look.

Remix it for your product

每次一个新的模型出来呢，大家都让它去画“[PRODUCT]”来判断这个模型的能力，基本上都是用 HTML、SVG 来画动画。当我实在看得都有审美疲劳了，我希望你能画一个最复杂、最精细、最精美的“[PRODUCT]”的动画视频，重点呈现 [FEATURES]，你可以用任何的技术，不用着急，画一天都可以。