Lidded box

easy tier · create

The request

Make a small two-part enclosure: a box body about 40×30×20mm (outer) with 2mm walls, and a lid that sits on top and overlaps the wall with a 0.3mm slip fit. Model them as two separate sub-parts named exactly `body` and `lid`, both shown in the same view.

What the AI judge checks

Measured checks

both sub-parts watertight (gate)

Ranked by hand

One reviewer put one attempt from each model in order, best first, ties left tied.

#1
Gemini 3.8 Flash
#2
GPT-6 Astra
#3
Fable 5.1
#4 tie
Opus 5
#4 tie
GPT-5.6 Sol

Ordering by hand decides Human rank and Human rate on the leaderboard; it never affects Overall or Strict.

Every model's attempts

Fable 5.1
100 100
100
$0.31
49s
GPT-5.6 Sol
100 100
100
$0.12
47s
GPT-6 Astra
100 100
100
$0.56
1m 0s
Gemini 3.8 Flash
100 100
100
$0.12
1m 20s
Opus 5
100 100
100
$0.31
3m 30s

Run baseline-2026-092026-09-10commit 41aec7daspend $339.70 + $48.02 AI judging, 7 unpricedOther runs: 2026-09-04T20-02-10-stage2-hard-cases, 2026-09-04T19-48-31-screen-14-fixed