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NVIDIA: Nemotron 3 Ultra
nemotron-3-ultra-550b-a55b
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...
Modalities
Input
text
Output
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Pricing
Cost per 1 million tokens
Input
$0.6
Output
$3
Model Specs
Context Window
262,144Max Output
16,384Release Date
2026-06-04Knowledge Cutoff
Capabilities
Reasoning
Tool Calling
Vision
Last Updated: 2026-06-04
Provider: