NVIDIA Releases Nemotron 3 Ultra for Enhanced Agentic AI
NVIDIA launched Nemotron 3 Ultra on June 4, 2026, a 550B-parameter Mixture-of-Experts model with 55B active parameters, optimized for orchestrating complex, long-running agent workflows. It features architectural innovations such as hybrid Mamba-Transformer layers for efficient long-context handling, NVFP4 quantization for cross-GPU deployment, LatentMoE for expert routing, and multi-token prediction for improved generative speed. The model is open-source, including weights, data, and recipes, allowing for broad adoption and fine-tuning.
Nemotron 3 Ultra provides a robust and efficient foundation for building advanced AI agents, with features like open-source availability and hardware optimization that facilitate wider deployment.
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