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Nerdict
GPT-6 Lunamaxin Codex CLIGalton board
Score14/15missed: Bell-shaped histogram (half the balls in the middle third)
Cost$0.018
Time4m54s
Runs of this setup#1 14/15#2 14/15#3 14/15
Galton board by GPT-6 LunaOpen it running ↗

This is the exact file the model wrote, unedited, served from an isolated domain with the network blocked, as in the test.

What the robot did

The comparison clip (the same script for every model)

Checks

14/15

Written from the prompt (test v1, checks v1). The model never saw them.

  • ✓Opens without a page error
  • ✓Test hooks present (getState, setGravity, pause, resume, reset)
  • ✓Visible canvas, at least 800×6001920×1080
  • ✓Animation is alive (frames keep changing)396 quadros em 3 s; imagem mudou
  • ✓Smooth: median frame time under 25 msintervalo mediano 8.3 ms (~120 fps)
  • ✓Starts by itself: balls fall and reach the binsdropped=215 inBins=179
  • ✓At least 13 bins15 caixas
  • ✓Counters add up (balls in bins ≤ balls dropped)soma=179 inBins=179 dropped=215
  • ✗Bell-shaped histogram (half the balls in the middle third)terço central com 33% de 179 bolas
  • ✓Pause freezes, resume continuespausado: 218→218; depois de retomar: 236
  • ✓Changing gravity changes the scene960 → 768 (pedido 768.0)
  • ✓Reset empties the binsdepois do reset: inBins=0 dropped=2
  • ✓No uncaught exception during the session
  • ✓No console errors
  • ✓No network attempts
Model
GPT-6 Luna gpt-6-luna
Reasoning effort
max
Started
Oct 9, 20:09 UTC
Harness
Codex CLI 0.162.0, by OpenAI (not ours) · one shot · tools used: 0
Harness settings
isolated container with no global instructions, read-only sandbox; shell, browser, apps, multi-agent and web off; empty /work folder · imagem=nerdict-bancada-codex:0.162.0 · sandbox=read-only
Tokens
in 8,911 · cache read 0 · out 33,614 · reasoning 22,596 · requests 1
Cost
$0.018 API-equivalent · extra spend $0 (subscription)
Test
Galton board v1 · checks v1 · prompt 2e0eaba1ad6a
Output file
37.6 KB · sha256 1f69407ff274
Run id
20261009T200905Z_galton-v1_luna-max_r3