Meta Llama 3H 405B vs Mistral Mixtral 8x7B

Detailed comparison for LLMs

MetaMistral

On Guardion's LLM vulnerability Benchmark, Meta Llama 3H 405B is the more secure of the two: Llama 3H 405B scores 36.6% and Mixtral 8x7B scores 38.0% 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 Meta Llama 3H 405B vs Mistral Mixtral 8x7B. Green marks the safer model on each metric.

Overall (ASR)

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

TAP Attack Method (ASR)

Llama 3H 405B
Mixtral 8x7B
66.2%

Crescendo Attack Method (ASR)

Llama 3H 405B
Mixtral 8x7B
24.3%

Zero-Shot (ASR)

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

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

Frequently asked questions

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

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

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

Llama 3H 405B has a 36.6% 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 Llama 3H 405B 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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