3DCodeVerse Opens 2.03M Executable 3D Code Pairs Across Six Languages, 90% Win Rate Over Claude Design on Human Eval

3DCodeVerse releases a 2.03M-pair dataset of executable 3D programs across Blender Python, CadQuery, Three.js, GLSL, OpenSCAD, and URDF, plus a multi-agent harness that generates, executes, and verifies code with VLM-judged visual feedback. Fine-tuning Qwen 3.5-9B on it lifts 3DCodeBench from 0% to 84.9% and CadQuery from 10.5% to 98.5%; harness refinement adds another 15.5-29.1 points over single-shot and reaches a 90% human-preference win rate against Claude Opus 5.5 Design.