This container houses the Llama-3.1-Nemotron-Ultra-253B-v1, a reasoning model offering a great tradeoff between accuracy and efficiency. Post-trained for chat, RAG, and tool calling, it supports a 128K context and fits on a single 8xH100 node.
Llama-3.1-Nemotron-Ultra-253B-v1 Overview
Description:
This container houses the Llama-3.1-Nemotron-Ultra-253B-v1, which is a large language model (LLM) which is a derivative of Meta Llama-3.1-405B-Instruct (AKA the reference model). It is a reasoning model that is post trained for reasoning, human chat preferences, and tasks, such as RAG and tool calling. The model supports a context length of 128K tokens. This model fits on a single 8xH100 node for inference.
Llama-3.1-Nemotron-Ultra-253B-v1 is a model which offers a great tradeoff between model accuracy and efficiency. Efficiency (throughput) directly translates to savings. Using a novel Neural Architecture Search (NAS) approach, we greatly reduce the model’s memory footprint, enabling larger workloads, as well as reducing the number of GPUs required to run the model in a data center environment. This NAS approach enables the selection of a desired point in the accuracy-efficiency tradeoff.
The model underwent a multi-phase post-training process to enhance both its reasoning and non-reasoning capabilities. This includes a supervised fine-tuning stage for Math, Code, Reasoning, Chat, and Tool Calling as well as multiple reinforcement learning (RL) stages using Group Relative Policy Optimization (GRPO) algorithms for reasoning, chat, and instruction-following.
The container components are ready for commercial use.
License/Terms of Use:
GOVERNING TERMS: The NIM container is governed by the NVIDIA Software License Agreement and the Product-Specific Terms for NVIDIA AI Products; except for the model which is governed by the NVIDIA Community Model License Agreement.
ADDITIONAL INFORMATION: Llama 3.1 Community License Agreement. Built with Llama.
Deployment Geography:
Global
Release Date:
- Hugging Face 04/07/2025 via
https://huggingface.co/nvidia/Llama-3_1-Nemotron-Ultra-253B-v1 - build.nvidia.com 04/07/2025 via
https://build.nvidia.com/nvidia/llama-3_1-nemotron-ultra-253b-v1
Llama-3.1-Nemotron-Ultra-253B-v1
Llama-3.1-Nemotron-Ultra-253B-v1 Container includes the following model:
| Model Name & Link | Use Case | How to Pull the Model |
|---|---|---|
| Llama-3.1-Nemotron-Ultra-253B-v1 | A foundational model for developers and researchers to build upon. It excels at complex reasoning, code generation, and can be fine-tuned to create custom, specialized generative AI applications. | Automatic |
Deployment Details:
Visit the NIM Container LLM page for release documentation, deployment guides, and more.
Our AI models are designed and/or optimized to run on NVIDIA GPU-accelerated systems. By leveraging NVIDIA’s hardware (e.g. GPU cores) and software frameworks (e.g., CUDA libraries), the model achieves faster training and inference times compared to CPU-only solutions.
Container Version(s):
Llama-3.1-Nemotron-Ultra-253B-v1-1.12.0
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