run 20260428T215533Z-b05e

Summary

Prompt

Make a stepped square pyramid built from three stacked rectangular blocks. All tiers are centered on the Z axis. Bottom tier: 40mm × 40mm × 10mm tall (x in [-20, 20], y in [-20, 20], z in [0, 10]). Middle tier sits directly on top: 28mm × 28mm × 10mm tall (x in [-14, 14], y in [-14, 14], z in [10, 20]). Top tier sits directly on top of the middle: 16mm × 16mm × 10mm tall (x in [-8, 8], y in [-8, 8], z in [20, 30]). Fuse all three into a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

params: {
  "type": "bbox",
  "min": [
    -20,
    -20,
    0
  ],
  "max": [
    20,
    20,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    20,
    20,
    30
  ],
  "actual_min": [
    -20,
    -20,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.05
}

params: {
  "type": "mass_props",
  "volume_mm3": 26400,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 26400,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 26400,
    "tolerance_pct": 0.1
  }
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          20,
          30
        ],
        "original_min": [
          -20,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          20,
          30
        ],
        "roundtripped_min": [
          -20,
          -20,
          0
        ],
        "tolerance_mm": 0.06403124237432849
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 26400,
        "pass": true,
        "roundtripped_mm3": 26400
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

{
  "model": "gpt-5",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 518
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T215533Z-b05e.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "Bottom Cube", "op": { "type": "Cube", "size": { "x": 40, "y": 40, "z": 10 } } },
    "2": { "id": 2, "name": "Bottom Translate", "op": { "type": "Translate", "child": 1, "offset": { "x": -20, "y": -20, "z": 0 } } },
    "3": { "id": 3, "name": "Middle Cube", "op": { "type": "Cube", "size": { "x": 28, "y": 28, "z": 10 } } },
    "4": { "id": 4, "name": "Middle Translate", "op": { "type": "Translate", "child": 3, "offset": { "x": -14, "y": -14, "z": 10 } } },
    "5": { "id": 5, "name": "Top Cube", "op": { "type": "Cube", "size": { "x": 16, "y": 16, "z": 10 } } },
    "6": { "id": 6, "name": "Top Translate", "op": { "type": "Translate", "child": 5, "offset": { "x": -8, "y": -8, "z": 20 } } },
    "7": { "id": 7, "name": "Union Bottom+Middle", "op": { "type": "Union", "left": 2, "right": 4 } },
    "8": { "id": 8, "name": "Union All", "op": { "type": "Union", "left": 7, "right": 6 } }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 8, "material": "default" }]
}

generated 2026-06-19T01:47:55.744Z · static site, regenerate with npm run build -w @mecheval/leaderboard