CANVAS · every model, same prompt
Build a solar system
11 models built this from the identical prompt. Click any one to open the live build.
▸ The prompt every model got
Build an animated solar system on an HTML <canvas>: a glowing sun at the center with several planets orbiting at different radii and speeds (pleasing, not literal, scale), each leaving a faint orbit ring. Add a slider that speeds up and slows down time, and a subtle starfield. Vanilla JavaScript only, no libraries. Return one self-contained HTML file. Output only the HTML.