# NVIDIA says its quantum AI models are open. They only run on NVIDIA hardware. - Date: 2026-04-15 - Category: Quantum Computing IQM used NVIDIA Ising to cut quantum chip calibration from days to hours — real enterprise bottleneck solved. But NVIDIA wrote the benchmark it used to beat GPT 5.4, the models only run on NVIDIA hardware, and the open-source label covers a proprietary stack. ---