August 3, 2026 NVIDIA Nemotron 3: Efficient and Open Intelligence NVIDIA Nemotron 3 系列（Nano/Super/Ultra）—— 混合 Mamba-Transformer MoE 架构，NVFP4 训练，LatentMoE，MTP，多环境 RL，1M token 上下文 llm-training moe mamba quantization nvfp4 latent-moe multi-token-prediction reinforcement-learning long-context inference-optimization