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Llama 3.1 405B Instruct vs Llama 3.1 Nemotron Ultra 253B v1
Comprehensive side-by-side LLM comparison
Llama 3.1 Nemotron Ultra 253B v1 leads with 13.1% higher average benchmark score. Llama 3.1 405B Instruct is available on 8 providers. Overall, Llama 3.1 Nemotron Ultra 253B v1 is the stronger choice for coding tasks.
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Meta
Llama 3.1 405B was developed as Meta's largest open-source language model, designed to provide frontier-level capabilities with 405 billion parameters. Built to demonstrate that open-source models can match proprietary systems in capability, it enables researchers and developers to experiment with and deploy a powerful foundation model without licensing restrictions.
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NVIDIA
Llama 3.1 Nemotron Ultra 253B was developed as NVIDIA's largest Nemotron variant, designed to provide maximum capability through extensive customization of large-scale foundations. Built with 253 billion parameters and NVIDIA's specialized training, it represents the flagship offering in the Nemotron family.
8 months newer
Llama 3.1 405B Instruct
Meta
2024-07-23
Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
2025-04-07
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Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Llama 3.1 405B Instruct
Average Score:69.7%
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Llama 3.1 Nemotron Ultra 253B v1
Average Score:82.7%(+13.1%)
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Knowledge Cutoff
Training data recency comparison
Llama 3.1 Nemotron Ultra 253B v1
2023-12-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Llama 3.1 405B Instruct
8 providers
Bedrock
Throughput: 100 tok/s
Latency: 0.5ms
DeepInfra
Throughput: 27 tok/s
Latency: 0.5ms
Fireworks
Throughput: 78 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
Hyperbolic
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Llama 3.1 405B Instruct
Avg Score:69.7%
Providers:8
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Llama 3.1 Nemotron Ultra 253B v1
Avg Score:82.7%(+13.1%)
Providers:0