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Llama 3 1 Nemotron Ultra 253B V1 FP8 by nvidia

By nvidia · 732 downloads
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Llama 3 1 Nemotron Ultra 253B V1 FP8 is an open-source language model by nvidia. Features: 253b LLM, VRAM: 198.8GB, Context: 128K, License: other, LLM Explorer Score: 0.19.

  Arxiv:2411.19146   Arxiv:2502.00203   Arxiv:2503.18908   Arxiv:2505.00949   Conversational   Custom code   En   Llama-3   Nemotron-nas   Nvidia   Pytorch   Region:us   Safetensors   Sharded   Tensorflow
Model Card on HF 🤗: https://huggingface.co/nvidia/Llama-3_1-Nemotron-Ultra-253B-v1-FP8 

Llama 3 1 Nemotron Ultra 253B V1 FP8 Parameters and Internals

LLM NameLlama 3 1 Nemotron Ultra 253B V1 FP8
Repository 🤗https://huggingface.co/nvidia/Llama-3_1-Nemotron-Ultra-253B-v1-FP8 
Model Size253b
Required VRAM198.8 GB
Updated2026-07-26
Maintainernvidia
Model Typenemotron-nas
Model Files  5.0 GB: 1-of-52   4.8 GB: 2-of-52   4.9 GB: 3-of-52   4.9 GB: 4-of-52   4.8 GB: 5-of-52   4.3 GB: 6-of-52   4.9 GB: 7-of-52   4.6 GB: 8-of-52   4.9 GB: 9-of-52   4.6 GB: 10-of-52   5.0 GB: 11-of-52   4.6 GB: 12-of-52   4.9 GB: 13-of-52   4.6 GB: 14-of-52   4.9 GB: 15-of-52   4.6 GB: 16-of-52   4.9 GB: 17-of-52   4.6 GB: 18-of-52   4.9 GB: 19-of-52   4.6 GB: 20-of-52   4.9 GB: 21-of-52   4.6 GB: 22-of-52   4.9 GB: 23-of-52   4.6 GB: 24-of-52   4.8 GB: 25-of-52   5.0 GB: 26-of-52   4.6 GB: 27-of-52   4.9 GB: 28-of-52   4.8 GB: 29-of-52   4.9 GB: 30-of-52   4.5 GB: 31-of-52   4.9 GB: 32-of-52   6.5 GB: 33-of-52   6.5 GB: 34-of-52   6.5 GB: 35-of-52   7.0 GB: 36-of-52   7.0 GB: 37-of-52   7.0 GB: 38-of-52   5.6 GB: 39-of-52
Supported Languagesen
Model ArchitectureDeciLMForCausalLM
Licenseother
Context Length131072
Model Max Length131072
Transformers Version4.48.3
Vocabulary Size128256
Torch Data Typebfloat16

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Note: green Score (e.g. "73.2") means that the model is better than nvidia/Llama-3_1-Nemotron-Ultra-253B-v1-FP8.