Anthropic Claude Sonnet 4.5 vs MiniMax MiniMax M2

Detailed comparison for LLMs

AnthropicMiniMax

On Guardion's LLM vulnerability Benchmark, Anthropic Claude Sonnet 4.5 is the more secure of the two: Claude Sonnet 4.5 scores 4.2% and MiniMax M2 scores 40.0% 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 Sonnet 4.5 is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Anthropic Claude Sonnet 4.5 vs MiniMax MiniMax M2. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Claude Sonnet 4.5
4.2%
MiniMax M2
40.0%

TAP Attack Method (ASR)

Claude Sonnet 4.5
100.0%
MiniMax M2
100.0%

Crescendo Attack Method (ASR)

Claude Sonnet 4.5
100.0%
MiniMax M2
100.0%

Zero-Shot (ASR)

Claude Sonnet 4.5
100.0%
MiniMax M2
100.0%

Key Highlights

  • Anthropic Claude Sonnet 4.5 has a lower Overall (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Claude Sonnet 4.5
MiniMax M2
Full security profile
Anthropic Claude Sonnet 4.5
Full security profile
MiniMax MiniMax M2

Frequently asked questions

Is Anthropic Claude Sonnet 4.5 or MiniMax MiniMax M2 more secure?

On Guardion's LLM vulnerability Benchmark, Anthropic Claude Sonnet 4.5 is the more secure of the two: Claude Sonnet 4.5 scores 4.2% and MiniMax M2 scores 40.0% 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 Sonnet 4.5 vs MiniMax M2?

Claude Sonnet 4.5 has a 4.2% ASR and MiniMax M2 has a 40.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Claude Sonnet 4.5 and MiniMax M2 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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