HTML Sonnet #41
3.9
Evaluation
3.9 avg
6.5 physics accuracy
6.5 design quality
5 animation quality
1.5 slider ux
1.5 completeness
2.5 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 demo with correct floating/sinking physics and live readouts, but entirely misses the prompt's core requirements: no two crowns, no crown-lowering vertical slider, no fall/splash/heureka animations, no rising water level, and uses a dark theme instead of a light background.

8,640 output tokens · claude-sonnet-4-6 · end_turn

Implements a generic Archimedes buoyancy demo with correct floating/sinking physics and live readouts, but entirely misses the prompt's core requirements: no two crowns, no crown-lowering vertical slider, no fall/splash/heureka animations, no rising water level, and uses a dark theme instead of a light background.