P3D-Bench - Assembly-3D Judge: leaderboard
Metric: MLLM-judge bucket score (0-100) (Gemini 3.1 Pro rates rendered views for semantic, geometric and aesthetic similarity and answers specification-derived QA) on 203 annotated multi-part assemblies (CadQuery and OpenSCAD outputs), the model writes a parametric CAD program that is compiled, meshed and aligned to the ground truth; invalid outputs take the worst value; each general model runs with its maximum thinking budget; averaged over the output formats; higher is better. Source: arxiv.org. Saturation forecast: Around February 2027. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.5 (xHigh) | 54.1 |
| 2 | Gemini 3.1 Pro (Preview) (High) | 50.7 |
| 3 | Claude Opus 4.6 (Max) | 37.6 |
| 4 | Qwen 3.6 Plus (Thinking) | 16.3 |
| 5 | GLM-5V Turbo | 12.9 |
| 6 | Seed 2.0 Pro (High) | 12.9 |
| 7 | MiMo-V2-Omni | 12 |
Interactive version: theaggregate.ai/benchmark?slug=p3d-bench-assembly-3d-judge · How It Works · Data refreshed daily, snapshot 2026-09-29.