Nvidia · AI MODEL

NVIDIA: Nemotron 3 Ultra (free)

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...

Input / 1M: $0.000
Output / 1M: $0.000
Cached input / 1M: —

Specifications

Context window: 1,000,000
Input modalities: text
Output modalities: text
Last checked: 10/18/2026, 11:00:41 PM

Source

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Open source

Hugging Face

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Date	Input / 1M	Output / 1M	Confidence
9/7/2026, 7:57:41 AM	$0.000	$0.000	100%

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