Google Gemma 3n E4B vs NVIDIA Llama 3.1 Nemotron Ultra 253B v1

Detailed comparison for LLMs

GoogleNVIDIA

On Guardion's LLM vulnerability Benchmark, NVIDIA Llama 3.1 Nemotron Ultra 253B v1 is the more secure of the two: Gemma 3n E4B scores 52.0% and Llama 3.1 Nemotron Ultra 253B v1 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

Llama 3.1 Nemotron Ultra 253B v1 is the overall winner in this comparison!

Attack Success Rate (lower is safer)

ASR for Google Gemma 3n E4B vs NVIDIA Llama 3.1 Nemotron Ultra 253B v1. Green marks the safer model on each metric. Only the overall score is available for estimated models.

Overall (ASR)

Gemma 3n E4B
52.0%
Llama 3.1 Nemotron Ultra 253B v1
40.0%

TAP Attack Method (ASR)

Gemma 3n E4B
100.0%
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Crescendo Attack Method (ASR)

Gemma 3n E4B
100.0%
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Zero-Shot (ASR)

Gemma 3n E4B
100.0%
Llama 3.1 Nemotron Ultra 253B v1
100.0%

Key Highlights

  • NVIDIA Llama 3.1 Nemotron Ultra 253B v1 has a lower Overall (ASR).

Security Profile

Outward is better on every axis.

OverallTAPCrescendoZero-Shot
Gemma 3n E4B
Llama 3.1 Nemotron Ultra 253B v1
Full security profile
Google Gemma 3n E4B
Full security profile
NVIDIA Llama 3.1 Nemotron Ultra 253B v1

Frequently asked questions

Is Google Gemma 3n E4B or NVIDIA Llama 3.1 Nemotron Ultra 253B v1 more secure?

On Guardion's LLM vulnerability Benchmark, NVIDIA Llama 3.1 Nemotron Ultra 253B v1 is the more secure of the two: Gemma 3n E4B scores 52.0% and Llama 3.1 Nemotron Ultra 253B v1 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 Gemma 3n E4B vs Llama 3.1 Nemotron Ultra 253B v1?

Gemma 3n E4B has a 52.0% ASR and Llama 3.1 Nemotron Ultra 253B v1 has a 40.0% ASR — the share of adversarial prompts that succeed across zero-shot, TAP, and Crescendo attacks. Lower is safer.

How were Gemma 3n E4B and Llama 3.1 Nemotron Ultra 253B v1 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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