HTML Opus #15
6.9
Evaluation
6.9 avg
7.5 physics accuracy
7.8 design quality
6 animation quality
7 slider ux
6.5 completeness
6.8 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

Mass/volume/density values are static (hardcoded in HTML, not dynamically updated by JS), so live_value_mass/volume/density are false; only displaced water and buoyancy update live, and there is no fall animation — the crown teleports/slides rather than falls with physics.

10,001 output tokens · claude-opus-4-6 · end_turn

Mass/volume/density values are static (hardcoded in HTML, not dynamically updated by JS), so live_value_mass/volume/density are false; only displaced water and buoyancy update live, and there is no fall animation — the crown teleports/slides rather than falls with physics.