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nvidia
NVIDIA: Nemotron 3 Ultra
nvidia/nemotron-3-ultra-550b-a55b
↓ runs free on your own hardware⚙ tool calling
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
specs & pricing
- Type
- text
- Provider
- nvidia
- Model ID
- nvidia/nemotron-3-ultra-550b-a55b
- Capabilities
- tools, reasoning
- Context window
- 512K tokens
- Self-hostable
- Yes — runs on your own GPU
- Input price
- $0.66 / 1M tokens
- Output price
- $3.96 / 1M tokens
Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.