NVIDIA Blackwell

Quartet II: Accurate LLM Pre-Training in NVFP4 by Improved Unbiased Gradient Estimation
A breakdown of Quartet II, an improved approach to fully-quantized NVFP4 pre-training for massive LLMs, featuring MS-EDEN unbiased gradient estimation.
Andrei Panferov
Feb 25, 2026 1 min read