Running MMLU 5-shot on Nemotron Nano Omni with a DGX Spark

My first LLM eval end-to-end: scoring NVIDIA's Nemotron-3-Nano-Omni-30B (NVFP4) on MMLU 5-shot via vLLM on a DGX Spark, with interactive charts breaking down where it's strong, where it's weak, and how confident it is.