Artifacts
What each model built on each task, shown on the held-out cases it was graded on.
GPU4PySCF J/K kernels
Every model sped up GPU4PySCF's FP64 Coulomb and exchange (J/K) integral kernels on an H100, and every result must match the reference, so only the GPU time differs. The race replays the graded timing on the 12 hidden test molecules the reward is computed on.