SmartApe AI

Oct 23, 2026 · Artificial Intelligence

PhysCodeGym Benchmark Catches Physics Errors in Code Agents' 4D Video Reconstruction

Shanghai Jiao Tong University and collaborators introduce PhysCodeGym, a benchmark with 156 real-video tasks requiring code agents to write executable Blender programs for 4D physical reconstruction; evaluation combines visual similarity with physical validity checks including counterfactual verification, revealing that even top models like GPT-6-Astra produce physically implausible simulations despite visual accuracy.