Anthropic Claude Haiku 4.5 vs Mistral Mixtral 8x7B

Detailed comparison for LLMs

AnthropicMistral

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 Mixtral 8x7B scores 38.0% 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 Mistral Mixtral 8x7B. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Claude Haiku 4.5
5.2%
Mixtral 8x7B
38.0%

TAP Attack Method (ASR)

Claude Haiku 4.5
100.0%
Mixtral 8x7B
66.2%

Crescendo Attack Method (ASR)

Claude Haiku 4.5
100.0%
Mixtral 8x7B
24.3%

Zero-Shot (ASR)

Claude Haiku 4.5
100.0%
Mixtral 8x7B
23.6%

Key Highlights

  • Anthropic Claude Haiku 4.5 has a lower Overall (ASR).
  • Mistral Mixtral 8x7B has a lower TAP Attack Method (ASR).
  • Mistral Mixtral 8x7B has a lower Crescendo Attack Method (ASR).
  • Mistral Mixtral 8x7B has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Claude Haiku 4.5
Mixtral 8x7B
Full security profile
Anthropic Claude Haiku 4.5
Full security profile
Mistral Mixtral 8x7B

Frequently asked questions

Is Anthropic Claude Haiku 4.5 or Mistral Mixtral 8x7B 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 Mixtral 8x7B scores 38.0% 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 Mixtral 8x7B?

Claude Haiku 4.5 has a 5.2% ASR and Mixtral 8x7B has a 38.0% 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 Mixtral 8x7B 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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