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Nvidia Nemotron 3 Ultra 550B
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...
Benchmarks
Available Providers (2)
| Provider | Model ID | Input Cost | Output Cost | Context | Max Output | Docs |
|---|---|---|---|---|---|---|
 NanoGPT | nvidia/nemotron-3-ultra-550b-a55b | $0.50/MTok | $2.50/MTok | 1M | 65.5K | |
 LLM Gateway | deepinfra/nemotron-3-ultra-550b | $0.50/MTok | $2.20/MTok | 262.1K | 262.1K |
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Structured Output