P3D-Bench - Assembly-3D Parts: leaderboard
Metric: Part bucket score (0-100) (part-match F1 and part shape F-score after a fixed MLLM decomposes each valid assembly into parts matched one-to-one to the ground-truth parts) 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 May 2027. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.5 (xHigh) | 62.9 |
| 2 | Gemini 3.1 Pro (Preview) (High) | 61.8 |
| 3 | Claude Opus 4.6 (Max) | 57.3 |
| 4 | MiMo-V2-Omni | 38.8 |
| 5 | Qwen 3.6 Plus (Thinking) | 35.1 |
| 6 | GLM-5V Turbo | 33.8 |
| 7 | Seed 2.0 Pro (High) | 32.2 |
Interactive version: theaggregate.ai/benchmark?slug=p3d-bench-assembly-3d-parts · How It Works · Data refreshed daily, snapshot 2026-09-29.