Can you tell which AI made a 3D model?

As 3D generative models flood gaming and VR, determining their source matters for authenticity and provenance. This work identifies stable fingerprints that different generators leave behind—cross-view inconsistencies and geometric artifacts—then builds a multi-modal Transformer to detect them across appearance, geometry, and frequency domains. On a new benchmark of 22 generators, the system reaches 97% accuracy with full data and 77% with just five examples per model.