Mistral Mixtral 8x7B vs Meta Llama 3H 405B

Detailed comparison for LLMs

MistralMeta

On Guardion's LLM vulnerability Benchmark, Meta Llama 3H 405B is the more secure of the two: Mixtral 8x7B scores 38.0% and Llama 3H 405B scores 36.6% on attack success rate (ASR) (lower is better).

Head-to-Head Overview

Llama 3H 405B is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Mistral Mixtral 8x7B vs Meta Llama 3H 405B. Green marks the safer model on each metric.

Overall (ASR)

Mixtral 8x7B
38.0%
Llama 3H 405B
36.6%

TAP Attack Method (ASR)

Mixtral 8x7B
66.2%
Llama 3H 405B

Crescendo Attack Method (ASR)

Mixtral 8x7B
24.3%
Llama 3H 405B

Zero-Shot (ASR)

Mixtral 8x7B
23.6%
Llama 3H 405B
12.9%

Key Highlights

  • Meta Llama 3H 405B has a lower Overall (ASR).
  • Meta Llama 3H 405B has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Mixtral 8x7B
Llama 3H 405B
Full security profile
Mistral Mixtral 8x7B
Full security profile
Meta Llama 3H 405B

Frequently asked questions

Is Mistral Mixtral 8x7B or Meta Llama 3H 405B more secure?

On Guardion's LLM vulnerability Benchmark, Meta Llama 3H 405B is the more secure of the two: Mixtral 8x7B scores 38.0% and Llama 3H 405B scores 36.6% on attack success rate (ASR) (lower is better).

What is the attack success rate (ASR) of Mixtral 8x7B vs Llama 3H 405B?

Mixtral 8x7B has a 38.0% ASR and Llama 3H 405B has a 36.6% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Mixtral 8x7B and Llama 3H 405B 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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