Llama 3.1 Nemotron Ultra 253B v1
A 253B parameter derivative of Meta Llama 3.1 405B Instruct, developed by NVIDIA using Neural Architecture Search (NAS) and vertical compression. It underwent multi-phase post-training (SFT for Math, Code, Reasoning, Chat, Tool Calling; RL
Benchmarks
Arena Performance
Llama 3.1 Nemotron Ultra 253B v1 Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
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FAQ
Common questions about Llama 3.1 Nemotron Ultra 253B v1
Llama 3.1 Nemotron Ultra 253B v1 was released on April 7, 2025 by Nvidia.
Llama 3.1 Nemotron Ultra 253B v1 was created by Nvidia.
Llama 3.1 Nemotron Ultra 253B v1 has 253.0 billion parameters.
Llama 3.1 Nemotron Ultra 253B v1 is released under the Llama 3.1 Community License license. This is an open-source/open-weight license.
Llama 3.1 Nemotron Ultra 253B v1 has a knowledge cutoff of December 2023. This means the model was trained on data up to this date.