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.
Get started
Download Ollama, then run Nemotron 3 Ultra with your tool of choice.
Claude Code
ollama launch claude --model nemotron-3-ultra:cloud
Hermes Agent
ollama launch hermes --model nemotron-3-ultra:cloud
OpenClaw
ollama launch openclaw --model nemotron-3-ultra:cloud
General chat
ollama run nemotron-3-ultra:cloud
See more integrations.
Benchmarks
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
Instagram Engineering
Shopify Engineering