NVIDIA unveils NV-Reason-CT, an open 3D vision-language model for CT scans
NV-Reason-CT (arxiv 2609.27511) pairs a Primus/COLIPRI-style 3D encoder with Qwen3.5-4B and GRPO RL; reports ~0.614 macro-F1 and ~0.871 AUROC on CT-RATE, plus a preliminary ~50% interpretation-time cut claim.