Cohere Command R vs OpenAI GPT OSS 120B

Detailed comparison for LLMs

CohereOpenAI

On Guardion's LLM vulnerability Benchmark, OpenAI GPT OSS 120B is the more secure of the two: Command R scores 32.9% and GPT OSS 120B scores 15.0% 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

GPT OSS 120B is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Cohere Command R vs OpenAI GPT OSS 120B. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Command R
32.9%
GPT OSS 120B
15.0%

TAP Attack Method (ASR)

Command R
56.7%
GPT OSS 120B
100.0%

Crescendo Attack Method (ASR)

Command R
32.6%
GPT OSS 120B
100.0%

Zero-Shot (ASR)

Command R
9.4%
GPT OSS 120B
100.0%

Key Highlights

  • OpenAI GPT OSS 120B 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).
  • Cohere Command R has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Command R
GPT OSS 120B
Full security profile
Cohere Command R
Full security profile
OpenAI GPT OSS 120B

Frequently asked questions

Is Cohere Command R or OpenAI GPT OSS 120B more secure?

On Guardion's LLM vulnerability Benchmark, OpenAI GPT OSS 120B is the more secure of the two: Command R scores 32.9% and GPT OSS 120B scores 15.0% 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 R vs GPT OSS 120B?

Command R has a 32.9% ASR and GPT OSS 120B has a 15.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Command R and GPT OSS 120B 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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