Anthropic Claude 3.7 Sonnet vs Meta Llama 4 Maverick

Detailed comparison for LLMs

AnthropicMeta

On Guardion's LLM vulnerability Benchmark, Anthropic Claude 3.7 Sonnet is the more secure of the two: Claude 3.7 Sonnet scores 20.3% and Llama 4 Maverick scores 27.7% on attack success rate (ASR) (lower is better).

Head-to-Head Overview

Claude 3.7 Sonnet is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Anthropic Claude 3.7 Sonnet vs Meta Llama 4 Maverick. Green marks the safer model on each metric.

Overall (ASR)

Claude 3.7 Sonnet
20.3%
Llama 4 Maverick
27.7%

TAP Attack Method (ASR)

Claude 3.7 Sonnet
31.4%
Llama 4 Maverick
65.3%

Crescendo Attack Method (ASR)

Claude 3.7 Sonnet
25.3%
Llama 4 Maverick
14.6%

Zero-Shot (ASR)

Claude 3.7 Sonnet
Llama 4 Maverick
3.0%

Key Highlights

  • Anthropic Claude 3.7 Sonnet has a lower Overall (ASR).
  • Anthropic Claude 3.7 Sonnet has a lower TAP Attack Method (ASR).
  • Meta Llama 4 Maverick has a lower Crescendo Attack Method (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Claude 3.7 Sonnet
Llama 4 Maverick
Full security profile
Anthropic Claude 3.7 Sonnet
Full security profile
Meta Llama 4 Maverick

Frequently asked questions

Is Anthropic Claude 3.7 Sonnet or Meta Llama 4 Maverick more secure?

On Guardion's LLM vulnerability Benchmark, Anthropic Claude 3.7 Sonnet is the more secure of the two: Claude 3.7 Sonnet scores 20.3% and Llama 4 Maverick scores 27.7% on attack success rate (ASR) (lower is better).

What is the attack success rate (ASR) of Claude 3.7 Sonnet vs Llama 4 Maverick?

Claude 3.7 Sonnet has a 20.3% ASR and Llama 4 Maverick has a 27.7% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Claude 3.7 Sonnet and Llama 4 Maverick 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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