What are the hardware requirements for NVIDIA Nemotron 3 Ultra 550B A55B GGUF?

NVIDIA Nemotron 3 Ultra 550B A55B GGUF requires a context window of 256K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed NVIDIA Nemotron 3 Ultra 550B A55B GGUF and how large is it?

NVIDIA Nemotron 3 Ultra 550B A55B GGUF is developed by unsloth, a model with 550b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

How does NVIDIA Nemotron 3 Ultra 550B A55B GGUF perform on standard benchmarks?

NVIDIA Nemotron 3 Ultra 550B A55B GGUF has the following published scores: LMSYS ELO 1422. Compare against reference models on this page or on the LLM Explorer leaderboards.

NVIDIA Nemotron 3 Ultra 550B A55B GGUF by unsloth — 256K context

Name: NVIDIA Nemotron 3 Ultra 550B A55B GGUF
Author: unsloth

NVIDIA Nemotron 3 Ultra 550B A55B GGUF is an open-source language model by unsloth. Features: 550b LLM, Context: 256K, License: other, Quantized, LLM Explorer Score: 0.45, ELO: 1422.

Ar Base model:nvidia/nvidia-nemot... Base model:quantized:nvidia/nv... Conversational Dataset:nvidia/nemotron-post-t... Dataset:nvidia/nemotron-pre-tr... De En Endpoints compatible Es Fr Gguf He Hi It Ja Ko Latent-moe Mtp Nemotron-3 Nemotron h Nvidia Pt Pytorch Quantized Region:us Unsloth Zh

Model Card on HF 🤗: https://huggingface.co/unsloth/NVIDIA-Nemotron-3-Ultra-550B-A55B-GGUF

NVIDIA Nemotron 3 Ultra 550B A55B GGUF Benchmarks

LMSys ELO 1422 vs 1272 (so35) 11.8%

^nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").

What is the LLM Explorer Rank (Score)

NVIDIA Nemotron 3 Ultra 550B A55B GGUF Parameters and Internals

LLM Name	NVIDIA Nemotron 3 Ultra 550B A55B GGUF
Repository 🤗	https://huggingface.co/unsloth/NVIDIA-Nemotron-3-Ultra-550B-A55B-GGUF
Base Model(s)	...emotron 3 Ultra 550B A55B BF16 nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16
Model Size	550b
Updated	2026-08-07
Maintainer	unsloth
Model Type	nemotron_h
Supported Languages	en fr es it de pt ja ko hi ar zh he
GGUF Quantization	Yes
Quantization Type	gguf
Model Architecture	NemotronHForCausalLM
License	other
Context Length	262144
Model Max Length	262144
Transformers Version	4.57.6
Vocabulary Size	131072
Torch Data Type	bfloat16

Rank the NVIDIA Nemotron 3 Ultra 550B A55B GGUF capabilities

Have you tried this model? Rate its performance — this feedback helps the ML community find the right model for their needs.

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

Best Alternatives to NVIDIA Nemotron 3 Ultra 550B A55B GGUF

Best Alternatives	Context / RAM	Downloads	Likes
...emotron 3 Ultra 550B A55B 4bit	256K / 130 GB	418	2
...motron 3 Ultra 550B A55B NVFP4	256K / 63.1 GB	240041	277
...emotron 3 Ultra 550B A55B BF16	256K / 204.9 GB	493863	308
...motron 3 Ultra 550B A55B NVFP4	256K / 63.1 GB	103	5
Nemotron 3 Labs Ultra Math SFT	256K / 85.9 GB	510	4
Nemotron 3 Labs Ultra Math RL	256K / 204.9 GB	374	3
...motron 3 Ultra 550B A55B GenRM	256K / 219.9 GB	2666	11
...on 3 Ultra 550B A55B Base BF16	256K / 209.9 GB	1005	29
Nemotron 3 Ultra 550B A55B	256K / 144.3 GB	473	2
...emotron 3 Ultra 550B A55B Base	256K / 209.9 GB	23	2

Note: green Score (e.g. "73.2") means that the model is better than unsloth/NVIDIA-Nemotron-3-Ultra-550B-A55B-GGUF.