Model Releases
NVIDIA Nemotron 3 Ultra now available on Amazon SageMaker JumpStart
The search results primarily discuss the Nemotron 3 Nano Omni model rather than Nemotron 3 Ultra. However, I found a recent NVIDIA blog post reference that indicates Nemotron 3 Ultra is available thro
The search results primarily discuss the Nemotron 3 Nano Omni model rather than Nemotron 3 Ultra. However, I found a recent NVIDIA blog post reference that indicates Nemotron 3 Ultra is available through AWS JumpStart . NVIDIA Nemotron 3 Ultra is a 550B-parameter Mixture-of-Experts model with 55B active parameters, optimized for orchestrating complex, long-running agent workflows by combining frontier reasoning and high throughput with domain adaptability . Architectural innovations include hybrid Mamba-Transformer layers for efficient long-context handling, NVFP4 quantization for cross-architecture GPU deployment with up to 5x higher throughput, and multi-token prediction for improved generative speed in multi-turn tasks .
Source: AWS ML Blog | 2026-06-04