Nvidia Nemotron 3 Ultra – open weight model

AI & Machine Learning(research.nvidia.com)view on HackerNews

NVIDIANemotron 3 Ultralarge language modelMixture-of-Experts Hybrid Mamba-AttentionLatentMoEMTP layersinference throughputmodel accuracy

Author: andsoitis

Date: 7/24/2026

Article Summary:

NVIDIA announces Nemotron 3 Ultra, a large language model with 550 billion parameters, featuring improved architecture and training methods.