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NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 by nvidia

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NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 is an open-source language model by nvidia. Features: 550b LLM, VRAM: 63.1GB, Context: 256K, License: other, LLM Explorer Score: 0.48.

  8-bit   Ar   Conversational Dataset:nvidia/nemotron-post-t... Dataset:nvidia/nemotron-pre-tr...   De   En   Endpoints compatible   Es   Fr   He   Hi   It   Ja   Ko   Latent-moe   Mtp   Nemotron-3   Nvidia   Pt   Pytorch   Region:us   Safetensors   Sharded   Tensorflow   Zh
Model Card on HF 🤗: https://huggingface.co/nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-NVFP4 

NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 Benchmarks

LLME Score: 0.48359
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 (nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-NVFP4)
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NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 Parameters and Internals

LLM NameNVIDIA Nemotron 3 Ultra 550B A55B NVFP4
Repository 🤗https://huggingface.co/nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-NVFP4 
Model Size550b
Required VRAM63.1 GB
Updated2026-06-04
Maintainernvidia
Model Typenemotron_h
Model Files  2.6 GB: 1-of-113   6.3 GB: 2-of-113   0.4 GB: 3-of-113   6.3 GB: 4-of-113   0.4 GB: 5-of-113   6.3 GB: 6-of-113   0.4 GB: 7-of-113   0.3 GB: 8-of-113   6.3 GB: 9-of-113   0.4 GB: 10-of-113   6.3 GB: 11-of-113   0.4 GB: 12-of-113   6.3 GB: 13-of-113   0.4 GB: 14-of-113   0.3 GB: 15-of-113   6.3 GB: 16-of-113   0.4 GB: 17-of-113   6.3 GB: 18-of-113   0.4 GB: 19-of-113   6.3 GB: 20-of-113
Supported Languagesen fr es it de pt ja ko hi ar zh he
Model ArchitectureNemotronHForCausalLM
Licenseother
Context Length262144
Model Max Length262144
Transformers Version5.3.0
Vocabulary Size131072

Rank the NVIDIA Nemotron 3 Ultra 550B A55B NVFP4 Capabilities

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Instruction Following and Task Automation  
Factuality and Completeness of Knowledge  
Censorship and Alignment  
Data Analysis and Insight Generation  
Text Generation  
Text Summarization and Feature Extraction  
Code Generation  
Multi-Language Support and Translation  

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