Amazon Nova Pro vs Google Gemini 2.0 Flash Lite

Detailed comparison for LLMs

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On Guardion's LLM vulnerability Benchmark, Amazon Nova Pro is the more secure of the two: Nova Pro scores 24.0% and Gemini 2.0 Flash Lite scores 31.3% 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

Nova Pro is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Amazon Nova Pro vs Google Gemini 2.0 Flash Lite. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Nova Pro
24.0%
Gemini 2.0 Flash Lite
31.3%

TAP Attack Method (ASR)

Nova Pro
100.0%
Gemini 2.0 Flash Lite
63.9%

Crescendo Attack Method (ASR)

Nova Pro
100.0%
Gemini 2.0 Flash Lite
28.7%

Zero-Shot (ASR)

Nova Pro
100.0%
Gemini 2.0 Flash Lite
1.3%

Key Highlights

  • Amazon Nova Pro has a lower Overall (ASR).
  • Google Gemini 2.0 Flash Lite has a lower TAP Attack Method (ASR).
  • Google Gemini 2.0 Flash Lite has a lower Crescendo Attack Method (ASR).
  • Google Gemini 2.0 Flash Lite has a lower Zero-Shot (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Nova Pro
Gemini 2.0 Flash Lite
Full security profile
Amazon Nova Pro
Full security profile
Google Gemini 2.0 Flash Lite

Frequently asked questions

Is Amazon Nova Pro or Google Gemini 2.0 Flash Lite more secure?

On Guardion's LLM vulnerability Benchmark, Amazon Nova Pro is the more secure of the two: Nova Pro scores 24.0% and Gemini 2.0 Flash Lite scores 31.3% 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 Nova Pro vs Gemini 2.0 Flash Lite?

Nova Pro has a 24.0% ASR and Gemini 2.0 Flash Lite has a 31.3% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Nova Pro and Gemini 2.0 Flash Lite 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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