VisCAD

VisCAD is a foundation model suite with multimodal industrial CAD intelligence, published as arXiv:2609.03811 (submitted 3 Sep 2026, revised 4 Sep 2026) by authors at JD Industrial. At its core is VisCAD-M1, a 27B model trained through mid-training and post-training for part-level design generation. It maps text descriptions, engineering drawings, real product photographs and rendered views through one visual foundation model interface to executable FreeCAD Python programs that can run and export a 3D model.

On PubCADBench and RealCADBench, VisCAD-M1 reaches an average part-level score of 0.5540, against 0.5496 for the strongest frontier model compared; reusing VisCAD-M1 as a test-time verifier raises the score to 0.5797, about a 5 percent relative improvement over the previous state of the art. VisCAD-H1 is a domain harness that extends the suite to assembly-level generation: it decomposes complex design intent into a bill of materials, per-part representations, mating relations and global placements, and the paper reports advantages over general-purpose harnesses in quantitative and qualitative evaluations.