Anthropic Claude Haiku 4.5 vs Cohere Command A
Detailed comparison for LLMs
On Guardion's LLM vulnerability Benchmark, Anthropic Claude Haiku 4.5 is the more secure of the two: Claude Haiku 4.5 scores 5.2% and Command A scores 26.0% 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
Claude Haiku 4.5 is the overall winner in this comparison!
Attack Success Rate (lower is safer)
ASR for Anthropic Claude Haiku 4.5 vs Cohere Command A. Green marks the safer model on each metric. Only the overall score is available for estimated models.
Overall (ASR)
TAP Attack Method (ASR)
Crescendo Attack Method (ASR)
Zero-Shot (ASR)
Key Highlights
- Anthropic Claude Haiku 4.5 has a lower Overall (ASR).
- Cohere Command A has a lower TAP Attack Method (ASR).
- Cohere Command A has a lower Crescendo Attack Method (ASR).
Security Profile
Outward is better on every axis.
Frequently asked questions
Is Anthropic Claude Haiku 4.5 or Cohere Command A more secure?
On Guardion's LLM vulnerability Benchmark, Anthropic Claude Haiku 4.5 is the more secure of the two: Claude Haiku 4.5 scores 5.2% and Command A scores 26.0% 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 Claude Haiku 4.5 vs Command A?
Claude Haiku 4.5 has a 5.2% ASR and Command A has a 26.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.
How were Claude Haiku 4.5 and Command A 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.