HTML Opus #05
4.1
Evaluation
4.1 avg
7.5 physics accuracy
6 design quality
5 animation quality
2 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 well-built generic Archimedes buoyancy simulator with correct spherical-cap physics and live value readouts, but is entirely off-prompt: no crowns, no Archimedes/Heureka narrative, no vertical immersion slider, no water-level rise, no splash effects, and uses a dark background — almost none of the specified features are present.

10,442 output tokens · claude-opus-4-6 · end_turn

Implements a well-built generic Archimedes buoyancy simulator with correct spherical-cap physics and live value readouts, but is entirely off-prompt: no crowns, no Archimedes/Heureka narrative, no vertical immersion slider, no water-level rise, no splash effects, and uses a dark background — almost none of the specified features are present.