HTML Opus #23
4.2
Evaluation
4.2 avg
6.5 physics accuracy
6.5 design quality
5 animation quality
3 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

This is a general Archimedes buoyancy simulator with density/fluid sliders, not the required two-crown (pure gold vs. gilded) Archimedes demo — the core prompt requirements (two crowns, same mass, vertical immersion slider, fall animation, rising water, splash effects) are entirely absent.

10,089 output tokens · claude-opus-4-6 · end_turn

This is a general Archimedes buoyancy simulator with density/fluid sliders, not the required two-crown (pure gold vs. gilded) Archimedes demo — the core prompt requirements (two crowns, same mass, vertical immersion slider, fall animation, rising water, splash effects) are entirely absent.