HTML Sonnet #25
4.2
Evaluation
4.2 avg
7.5 physics accuracy
6.5 design quality
4 animation quality
2.5 slider ux
1.5 completeness
3 overall
— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML

Implements a generic Archimedes buoyancy simulator with correct physics and live readouts, but completely misses the prompt's core requirements: no two crowns, no vertical slider, no fall animation, no splash effects, no rising water level, no Heureka moment, and uses a dark background instead of light.

6,857 output tokens · claude-sonnet-4-6 · end_turn

Implements a generic Archimedes buoyancy simulator with correct physics and live readouts, but completely misses the prompt's core requirements: no two crowns, no vertical slider, no fall animation, no splash effects, no rising water level, no Heureka moment, and uses a dark background instead of light.