← Back to all models

Llama-3.1-Nemotron-Ultra-253B-v1

llama-3.1-nemotron-ultra-253b-v1

Provider: Nvidia, Context: 131072, Output Limit: 8192

Available at 2 Providers

Provider Source Input Price ($/1M) Output Price ($/1M) Description Free
nvidia models-dev Input: $0.00 Output: $0.00 Provider: Nvidia, Context: 131072, Output Limit: 8192
openrouter openrouter Input: $0.60 Output: $1.80 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. Context: 131072