Photo knob oblique

GPT-6 Sol, effort high$0.221m 57s1m 50s waiting on the model3 builds

Reference
iso
front
back
top
bottom
left
right

89of 100

built: 100
geometry: 79
AI judge: 7 of 7

What the AI judge checked

Pass:The overall form matches the reference: the same kind of object, the same silhouette from the matching angle
- Opus 5.5: pass: The render shows a short cylindrical knurled knob with a central D-bore on top, matching the reference's puck-like silhouette.
- GPT-6 Sol: pass: The render shows the same low, round knob with a broad top, central bore, and textured side.
Pass:Proportions match: the relative sizes of the major dimensions agree with the reference within what the eye can judge
- Opus 5.5: pass: Side views show a height of roughly 0.5 of the diameter, consistent with the reference's squat knob proportions, and the bore is similarly about a quarter of the diameter.
- GPT-6 Sol: pass: The rendered knob’s height, diameter, and bore size appear comparable to those in the reference.
Pass:Every major feature visible in the reference (holes, slots, bosses, tabs, lips) is present in the result
- Opus 5.5: pass: The render includes the diamond knurl, chamfers at both the top and bottom rims, and a D-shaped central bore, all of which appear in the reference.
- GPT-6 Sol: pass: The central D-shaped bore, diamond-patterned side, and shaped upper and lower rims are present.
Pass:Those features sit where the reference has them
- Opus 5.5: pass: The bore is centred on the top face and the knurl band sits between the plain chamfered top and bottom bands, as in the reference.
- GPT-6 Sol: pass: The bore is centered on the top face, and the knurl occupies the sidewall as in the reference.
Pass:Nothing is present that the reference does not show — no decorative or unexplained geometry
- Opus 5.5: pass: The bottom face is plain and no extra geometry appears beyond the knurl, the chamfers and the bore.
- GPT-6 Sol: pass: The renders show no extra bosses, cuts, or decorative features beyond the reference features.
Pass:A diamond knurl around the side — crossing grooves, not smooth and not straight ridges
- Opus 5.5: pass: The side views show crossing diagonal grooves forming a diamond pattern.
- GPT-6 Sol: pass: Crossing diagonal grooves form a diamond knurl around the side.
Pass:A flat top face with a single hole in its centre and nothing else cut into it
- Opus 5.5: pass: The top view shows a flat face with only the central D-shaped bore cut into it.
- GPT-6 Sol: pass: The flat top face has one central hole and no other cuts.

Measured

✓ watertight: ok
✓ one sub-part named knob: ok
✓ diameter is 38.13 mm: ok
✗ height is 12 mm ± 10 %: predicate returned false
✓ the bore clears 9.5 mm to 10.64 mm deep: ok
✓ the bore is not oversize: ok
✓ the D flat is where the prompt put it: ok
✓ the flat is not cut too deep: ok
✓ the bore is blind: ok
✗ chamfered at the top rim: predicate returned false
✗ chamfered at the bottom rim: predicate returned false
✓ the side is full at mid-height: ok
✓ the top face is flat out to 34.7 mm: ok
✓ silhouette matches the photo: ok

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Run hard-compact-2026-10-162026-10-16commit 6fa9f854spend $116.04 + $54.69 AI judging, 1 unpricedOther runs: 2026-11-05T06-56-21-kimi31-sonnet-hard, 2026-11-05T05-50-12-kimi31-vs-sonnet, 2026-09-23T06-56-16-hard-baseline-2026-09-23, 2026-09-10T19-44-23-baseline-2026-09, 2026-09-04T20-02-10-stage2-hard-cases, 2026-09-04T19-48-31-screen-14-fixed