Amazon Nova Pro vs Meta Llama 3.1 405B Instruct

Detailed comparison for LLMs

AmazonMeta

On Guardion's LLM vulnerability Benchmark, Amazon Nova Pro is the more secure of the two: Nova Pro scores 24.0% and Llama 3.1 405B Instruct scores 36.0% 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

Nova Pro is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Amazon Nova Pro vs Meta Llama 3.1 405B Instruct. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Nova Pro
24.0%
Llama 3.1 405B Instruct
36.0%

TAP Attack Method (ASR)

Nova Pro
100.0%
Llama 3.1 405B Instruct
100.0%

Crescendo Attack Method (ASR)

Nova Pro
100.0%
Llama 3.1 405B Instruct
100.0%

Zero-Shot (ASR)

Nova Pro
100.0%
Llama 3.1 405B Instruct
100.0%

Key Highlights

  • Amazon Nova Pro has a lower Overall (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Nova Pro
Llama 3.1 405B Instruct
Full security profile
Amazon Nova Pro
Full security profile
Meta Llama 3.1 405B Instruct

Frequently asked questions

Is Amazon Nova Pro or Meta Llama 3.1 405B Instruct more secure?

On Guardion's LLM vulnerability Benchmark, Amazon Nova Pro is the more secure of the two: Nova Pro scores 24.0% and Llama 3.1 405B Instruct scores 36.0% 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 Nova Pro vs Llama 3.1 405B Instruct?

Nova Pro has a 24.0% ASR and Llama 3.1 405B Instruct has a 36.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Nova Pro and Llama 3.1 405B Instruct 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.

Related Comparisons