← mecheval / run / a2-channel-bracket-01 / openai-direct-gpt-5 / 20260428T215216Z-5389

run 20260428T215216Z-5389

a2-channel-bracket-01 · openai-direct-gpt-5

Summary

statusPASS
score1.00 (4/4)
submissionself-run
modelopenai-direct-gpt-5 (openai)
started2026-04-28T21:52:16.038Z
ended2026-04-28T21:52:34.915Z
tokens649 in · 1,254 out · 1,903 total
wallclock18.9s
tool calls1
task hash8a57ee77a91f87fa…
vcad hash7286ef0ea18bd139…

Prompt

Make a U-shaped channel bracket built from three rectangular plates fused into a single solid. Bottom plate: x in [0, 30], y in [0, 40], z in [0, 4]. Left wall standing on top of the bottom: x in [0, 4], y in [0, 40], z in [4, 30]. Right wall standing on top of the bottom: x in [26, 30], y in [0, 40], z in [4, 30]. Output a single solid.

Checks

0
valid_solid
pass
params + details
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}
1
bbox
pass
params + details
params: {
  "type": "bbox",
  "min": [
    0,
    0,
    0
  ],
  "max": [
    30,
    40,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    30,
    40,
    30
  ],
  "actual_min": [
    0,
    0,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.05
}
2
mass_props
pass
params + details
params: {
  "type": "mass_props",
  "volume_mm3": 13120,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 13120,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 13120,
    "tolerance_pct": 0.1
  }
}
3
step_roundtrip
pass
params + details
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          40,
          30
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          40,
          30
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.05830951894845301
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 13120,
        "pass": true,
        "roundtripped_mm3": 13120
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

0
openai.chat.completions.create
ok
18862ms
args
{
  "model": "gpt-5",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 403
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T215216Z-5389.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "bottom_plate", "op": { "type": "Cube", "size": { "x": 30, "y": 40, "z": 4 } } },
    "2": { "id": 2, "name": "left_wall_cube", "op": { "type": "Cube", "size": { "x": 4, "y": 40, "z": 26 } } },
    "3": { "id": 3, "name": "left_wall_translate", "op": { "type": "Translate", "child": 2, "offset": { "x": 0, "y": 0, "z": 4 } } },
    "4": { "id": 4, "name": "right_wall_cube", "op": { "type": "Cube", "size": { "x": 4, "y": 40, "z": 26 } } },
    "5": { "id": 5, "name": "right_wall_translate", "op": { "type": "Translate", "child": 4, "offset": { "x": 26, "y": 0, "z": 4 } } },
    "6": { "id": 6, "name": "union_bottom_left", "op": { "type": "Union", "left": 1, "right": 3 } },
    "7": { "id": 7, "name": "u_channel_bracket", "op": { "type": "Union", "left": 6, "right": 5 } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 7, "material": "default" }]
}

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