M3 clearance plate

easy tier · create

The request

Make a 50×50mm mounting plate, 3mm thick, with four M3 screw clearance holes (3.4mm diameter) set 8mm in from each corner. The holes go all the way through.

What the AI judge checks

Measured checks

footprint ~50×50
thickness ~3

Ranked by hand

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

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

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
$0.23
32s
GPT-5.6 Sol
100 100
100
$0.09
28s
GPT-6 Astra
100 100
100
$0.46
40s
Gemini 3.8 Flash
100 100
100
$0.05
18s
Opus 5
100 100
100
$0.21
2m 55s

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