Meta Llama Guard vs Alibaba QwenGuard4B

Detailed comparison for runtime guardrails

MetaAlibaba

On Guardion's Prompt Attack Risk Benchmark, Alibaba QwenGuard4B is the more secure of the two: Llama Guard scores NaN% and QwenGuard4B scores NaN% on F1 score (higher is better).

Head-to-Head Overview

QwenGuard4B is the overall winner in this comparison!

Guardrail Metrics

F1 Score

Llama Guard
0.000
QwenGuard4B
0.000

Accuracy

Llama Guard
0.000
QwenGuard4B
0.000

Precision

Llama Guard
0.000
QwenGuard4B
0.000

Recall

Llama Guard
0.000
QwenGuard4B
0.000

False Positive Rate

Llama Guard
0.000
QwenGuard4B
0.000

False Negative Rate

Llama Guard
0.000
QwenGuard4B
0.000

Average Latency (ms)

Llama Guard
0.000
QwenGuard4B
0.000

p50 Latency (ms)

Llama Guard
0.000
QwenGuard4B
0.000

p90 Latency (ms)

Llama Guard
0.000
QwenGuard4B
0.000

Key Highlights

No specific highlights generated for this comparison.

Security Profile

Outward is better on every axis.

F1 ScoreAccuracyPrecisionRecallFPRFNRAverage Latency (ms)p50 Latency (ms)p90 Latency (ms)
Llama Guard
QwenGuard4B
Full security profile
Meta Llama Guard
Full security profile
Alibaba QwenGuard4B

Frequently asked questions

Is Meta Llama Guard or Alibaba QwenGuard4B more secure?

On Guardion's Prompt Attack Risk Benchmark, Alibaba QwenGuard4B is the more secure of the two: Llama Guard scores NaN% and QwenGuard4B scores NaN% on F1 score (higher is better).

What is the F1 score of Llama Guard vs QwenGuard4B?

Llama Guard scores NaN% F1 and QwenGuard4B scores NaN% F1 on Guardion's prompt-attack benchmark. F1 balances precision and recall — higher is better.

How were Llama Guard and QwenGuard4B tested?

Both were evaluated via API at production-like sensitivity against 30+ prompt-attack categories using zero-shot, Crescendo, and TAP methods, scored by F1.

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