Cohere Command 2X vs NVIDIA Llama 3.1 Nemotron Ultra 253B v1

Detailed comparison for LLMs

CohereNVIDIA

On Guardion's LLM vulnerability Benchmark, Cohere Command 2X is the more secure of the two: Command 2X scores 39.4% and Llama 3.1 Nemotron Ultra 253B v1 scores 40.0% on attack success rate (ASR) (lower is better). One or both scores are estimated from public safety evaluations pending a Guardion benchmark run.

Head-to-Head Overview

Command 2X is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Cohere Command 2X vs NVIDIA Llama 3.1 Nemotron Ultra 253B v1. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Command 2X
39.4%
Llama 3.1 Nemotron Ultra 253B v1
40.0%

TAP Attack Method (ASR)

Command 2X
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Crescendo Attack Method (ASR)

Command 2X
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Zero-Shot (ASR)

Command 2X
6.2%
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Key Highlights

  • Cohere Command 2X has a lower Overall (ASR).
  • Cohere Command 2X has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Command 2X
Llama 3.1 Nemotron Ultra 253B v1
Full security profile
Cohere Command 2X
Full security profile
NVIDIA Llama 3.1 Nemotron Ultra 253B v1

Frequently asked questions

Is Cohere Command 2X or NVIDIA Llama 3.1 Nemotron Ultra 253B v1 more secure?

On Guardion's LLM vulnerability Benchmark, Cohere Command 2X is the more secure of the two: Command 2X scores 39.4% and Llama 3.1 Nemotron Ultra 253B v1 scores 40.0% on attack success rate (ASR) (lower is better). One or both scores are estimated from public safety evaluations pending a Guardion benchmark run.

What is the attack success rate (ASR) of Command 2X vs Llama 3.1 Nemotron Ultra 253B v1?

Command 2X has a 39.4% ASR and Llama 3.1 Nemotron Ultra 253B v1 has a 40.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Command 2X and Llama 3.1 Nemotron Ultra 253B v1 tested?

Both were red-teamed with the HarmBench framework across zero-shot, TAP (Tree of Attacks with Pruning), and Crescendo multi-turn attacks, scored by Attack Success Rate.

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