NVIDIA Nemotron 3 Ultra 上线 Ollama 云
NVIDIA Nemotron 3 Ultra · Ollama Blog
NVIDIA Nemotron 3 Ultra 已在 Ollama 云上线，这是一个 550B 参数（55B 激活）的开源模型，面向长时运行的智能体工作流。它支持 1M token 上下文，针对 NVFP4 格式优化，官方称在智能体生产力、指令遵循和长上下文任务上准确率领先，成本较其他领先开源模型最多节省 30%。
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June 4, 2026
NVIDIA Nemotron 3 Ultra is now available on Ollama’s cloud. It’s a 550 billion parameter (55B active) open model from NVIDIA built for long-running, agentic workflows with fast and affordable performance across hundreds of tool calls.
Model highlights
Built for long-running agents: Tuned for agent orchestration, coding agents, deep research, and complex enterprise workflows that run across hundreds of steps; 1M token context: Keep entire codebases, long tool histories, and research trails in context without losing the thread; Frontier reasoning, high efficiency: 550B total parameters with only 55B active per token, and optimized for NVFP4—NVIDIA’s 4-bit floating point format that packs the model into less memory and runs faster
Download Ollama, then run Nemotron 3 Ultra with your tool of choice.
Nemotron 3 Ultra leads on accuracy across agent productivity, instruction following, and long-context tasks, while delivering leading throughput—saving up to 30% on costs compared to other leading open models.
Figure 1: Nemotron 3 Ultra leads among open models on agentic benchmarks for agent productivity, coding, and instruction following.
Figure 2: Nemotron 3 Ultra is in the most attractive quadrant with leading accuracy and leading throughput among open models.
Figure 3: Nemotron 3 Ultra saves up to 30% in costs and leads on the cost efficiency frontier.
Reference
NVIDIA Nemotron 3 Ultra blog; Ollama model page