Cohere Command R vs OpenAI GPT-4o

Detailed comparison for LLMs

CohereOpenAI

On Guardion's LLM vulnerability Benchmark, OpenAI GPT-4o is the more secure of the two: Command R scores 32.9% and GPT-4o scores 22.8% on attack success rate (ASR) (lower is better).

Head-to-Head Overview

GPT-4o is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Cohere Command R vs OpenAI GPT-4o. Green marks the safer model on each metric.

Overall (ASR)

Command R
32.9%
GPT-4o
22.8%

TAP Attack Method (ASR)

Command R
56.7%
GPT-4o
39.6%

Crescendo Attack Method (ASR)

Command R
32.6%
GPT-4o
25.6%

Zero-Shot (ASR)

Command R
9.4%
GPT-4o
3.4%

Key Highlights

  • OpenAI GPT-4o has a lower Overall (ASR).
  • OpenAI GPT-4o has a lower TAP Attack Method (ASR).
  • OpenAI GPT-4o has a lower Crescendo Attack Method (ASR).
  • OpenAI GPT-4o has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Command R
GPT-4o
Full security profile
Cohere Command R
Full security profile
OpenAI GPT-4o

Frequently asked questions

Is Cohere Command R or OpenAI GPT-4o more secure?

On Guardion's LLM vulnerability Benchmark, OpenAI GPT-4o is the more secure of the two: Command R scores 32.9% and GPT-4o scores 22.8% on attack success rate (ASR) (lower is better).

What is the attack success rate (ASR) of Command R vs GPT-4o?

Command R has a 32.9% ASR and GPT-4o has a 22.8% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Command R and GPT-4o 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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