What does “AA Ref” mean in NVIDIA model benchmarks?

Thanks for such impressive tools!

In several NVIDIA model cards (e.g., [nvidia/DeepSeek-R1-0528-FP4](https://huggingface.co/nvidia/DeepSeek-R1-0528-FP4) or [nvidia/Qwen3-30B-A3B-FP4](https://huggingface.co/nvidia/Qwen3-30B-A3B-FP4)), I see results labeled as “FP8 (AA Ref)” or “BF16 (AA Ref)”. Could anyone clarify what “AA Ref” officially stands for?