Cohere Command A vs Cohere Command R

Detailed comparison for LLMs

CohereCohere

On Guardion's LLM vulnerability Benchmark, Cohere Command A is the more secure of the two: Command A scores 26.0% and Command R scores 32.9% 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 A is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Cohere Command A vs Cohere Command R. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Command A
26.0%
Command R
32.9%

TAP Attack Method (ASR)

Command A
61.2%
Command R
56.7%

Crescendo Attack Method (ASR)

Command A
50.5%
Command R
32.6%

Zero-Shot (ASR)

Command A
Command R
9.4%

Key Highlights

  • Cohere Command A has a lower Overall (ASR).
  • Cohere Command R has a lower TAP Attack Method (ASR).
  • Cohere Command R has a lower Crescendo Attack Method (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Command A
Command R
Full security profile
Cohere Command A
Full security profile
Cohere Command R

Frequently asked questions

Is Cohere Command A or Cohere Command R more secure?

On Guardion's LLM vulnerability Benchmark, Cohere Command A is the more secure of the two: Command A scores 26.0% and Command R scores 32.9% 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 A vs Command R?

Command A has a 26.0% ASR and Command R has a 32.9% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Command A and Command R 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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