Google Gemini 2.0 Flash Thinking vs Anthropic Claude 3.7 Sonnet

Detailed comparison for LLMs

GoogleAnthropic

On Guardion's LLM vulnerability Benchmark, Anthropic Claude 3.7 Sonnet is the more secure of the two: Gemini 2.0 Flash Thinking scores 21.5% and Claude 3.7 Sonnet scores 20.3% 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 3.7 Sonnet is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Google Gemini 2.0 Flash Thinking vs Anthropic Claude 3.7 Sonnet. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Gemini 2.0 Flash Thinking
21.5%
Claude 3.7 Sonnet
20.3%

TAP Attack Method (ASR)

Gemini 2.0 Flash Thinking
100.0%
Claude 3.7 Sonnet
31.4%

Crescendo Attack Method (ASR)

Gemini 2.0 Flash Thinking
100.0%
Claude 3.7 Sonnet
25.3%

Zero-Shot (ASR)

Gemini 2.0 Flash Thinking
100.0%
Claude 3.7 Sonnet

Key Highlights

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

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Gemini 2.0 Flash Thinking
Claude 3.7 Sonnet
Full security profile
Google Gemini 2.0 Flash Thinking
Full security profile
Anthropic Claude 3.7 Sonnet

Frequently asked questions

Is Google Gemini 2.0 Flash Thinking or Anthropic Claude 3.7 Sonnet more secure?

On Guardion's LLM vulnerability Benchmark, Anthropic Claude 3.7 Sonnet is the more secure of the two: Gemini 2.0 Flash Thinking scores 21.5% and Claude 3.7 Sonnet scores 20.3% 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 Gemini 2.0 Flash Thinking vs Claude 3.7 Sonnet?

Gemini 2.0 Flash Thinking has a 21.5% ASR and Claude 3.7 Sonnet has a 20.3% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Gemini 2.0 Flash Thinking and Claude 3.7 Sonnet 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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