Comprehensive side-by-side LLM comparison
Llama 3.1 Nemotron Ultra 253B v1 leads with 40.1% higher average benchmark score. Overall, Llama 3.1 Nemotron Ultra 253B v1 is the stronger choice for coding tasks.
xAI
Grok 1.5 was developed by xAI as an advanced language model, designed to provide helpful and accurate information with a focus on reasoning and factual knowledge. Built to serve as a conversational AI with strong analytical capabilities, it represents xAI's early generation of foundation models.
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.
1 year newer

Grok-1.5
xAI
2024-03-28

Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
2025-04-07
Average performance across 1 common benchmarks

Grok-1.5

Llama 3.1 Nemotron Ultra 253B v1
Llama 3.1 Nemotron Ultra 253B v1
2023-12-01
Available providers and their performance metrics

Grok-1.5

Llama 3.1 Nemotron Ultra 253B v1

Grok-1.5

Llama 3.1 Nemotron Ultra 253B v1