Model Information
| Slug | llama-3-1-nemotron-ultra-253b-v1 |
|---|---|
| LLM.txt | View |
| Release Date | April 7, 2025 |
| AIME 2025 | 0.725 |
| GPQA | 0.7601 |
Organization
| Name | Nvidia |
|---|---|
| Website | https://www.nvidia.com/en-us/ai/ |
Model Description
Llama-3.1-Nemotron-Ultra-253B-v1 is a large language model (LLM) optimized for advanced reasoning, human-interactive chat, retrieval-augmented generation (RAG), and tool-calling tasks. Derived from Meta’s Llama-3.1-405B-Instruct, it has been significantly customized using Neural Architecture Search (NAS), resulting in enhanced efficiency, reduced memory usage, and improved inference latency. The model supports a context length of up to 128K tokens and can operate efficiently on an 8x NVIDIA H100 node.
Note: you must include `detailed thinking on` in the system prompt to enable reasoning. Please see [Usage Recommendations](https://huggingface.co/nvidia/Llama-3_1-Nemotron-Ultra-253B-v1#quick-start-and-usage-recommendations) for more.
Note: you must include `detailed thinking on` in the system prompt to enable reasoning. Please see [Usage Recommendations](https://huggingface.co/nvidia/Llama-3_1-Nemotron-Ultra-253B-v1#quick-start-and-usage-recommendations) for more.
Available at 10 Providers
| Provider | Type | Model Name | Original Model | Input ($/1M) | Output ($/1M) | Free | Actions | |
|---|---|---|---|---|---|---|---|---|
|
|
Nvidia |
llama-3.1-nemotron-ultra-253b-v1
|
nvidia/llama-3.1-nemotron-ultra-253b-v1
|
$0.00 | $0.00 | |||
|
|
AIHubMix |
Llama-3_1-Nemotron-Ultra-253B-v1
|
nvidia/Llama-3_1-Nemotron-Ultra-253B-v1
|
$0.50 | $0.50 | |||
|
|
Nebius Token Factory |
Llama-3_1-Nemotron-Ultra-253B-v1
|
nvidia/Llama-3_1-Nemotron-Ultra-253B-v1
|
$0.60 | $1.80 | |||
|
|
Kilo Code |
Code
|
NVIDIA: Llama 3.1 Nemotron Ultra 253B v1
|
nvidia/llama-3.1-nemotron-ultra-253b-v1
|
$0.60 | $1.80 | ||
|
|
Blackbox AI |
Code
|
NVIDIA: Llama 3.1 Nemotron Ultra 253B v1
|
nvidia/llama-3.1-nemotron-ultra-253b-v1
|
$0.60 | $1.80 | ||
|
|
WaveSpeed AI |
Chat
Code
|
llama-3.1-nemotron-ultra-253b-v1
|
nvidia/llama-3.1-nemotron-ultra-253b-v1
|
$0.66 | $1.98 | ||
|
|
Nano-GPT |
Nvidia Nemotron Ultra 253B
|
nvidia/Llama-3.1-Nemotron-Ultra-253B-v1
|
- | - | |||
|
|
ValorGPT |
Llama 3.1 Nemotron Ultra 253B v1
|
nvidia-llama-3.1-nemotron-ultra-253b-v1
|
- | - | |||
|
|
LangDB |
llama-3.1-nemotron-ultra-253b-v1
|
llama-3.1-nemotron-ultra-253b-v1
|
- | - | |||
|
|
Writingmate |
Chat
Code
|
NVIDIA: Llama 3.1 Nemotron Ultra 253B v1
|
nvidia/llama-3.1-nemotron-ultra-253b-v1
|
- | - |