Azure Prompt Shield vs GuardionAI ModernGuard PII

Detailed comparison for runtime guardrails

AzureGuardionAI

On Guardion's Prompt Attack Risk Benchmark, GuardionAI ModernGuard PII is the more secure of the two: Prompt Shield scores NaN% and ModernGuard PII scores NaN% on F1 score (higher is better).

Head-to-Head Overview

Prompt Shield is the overall winner in this comparison!

Guardrail Metrics

F1 Score

Prompt Shield
42.980
ModernGuard PII
0.000

Accuracy

Prompt Shield
59.410
ModernGuard PII
0.000

Precision

Prompt Shield
93.520
ModernGuard PII
0.000

Recall

Prompt Shield
27.900
ModernGuard PII
0.000

False Positive Rate

Prompt Shield
2.350
ModernGuard PII
0.000

False Negative Rate

Prompt Shield
72.100
ModernGuard PII
0.000

Average Latency (ms)

Prompt Shield
0.173
ModernGuard PII
0.000

p50 Latency (ms)

Prompt Shield
169.357
ModernGuard PII
0.000

p90 Latency (ms)

Prompt Shield
203.948
ModernGuard PII
0.000

Key Highlights

  • Azure Prompt Shield has a better F1 Score.
  • Azure Prompt Shield has a better Accuracy.
  • Azure Prompt Shield has a better Precision.
  • Azure Prompt Shield has a better Recall.
  • GuardionAI ModernGuard PII has a better False Positive Rate.
  • GuardionAI ModernGuard PII has a better False Negative Rate.
  • GuardionAI ModernGuard PII has a better Average Latency (ms).
  • GuardionAI ModernGuard PII has a better p50 Latency (ms).
  • GuardionAI ModernGuard PII has a better p90 Latency (ms).

Security Profile

Outward is better on every axis.

F1 ScoreAccuracyPrecisionRecallFPRFNRAverage Latency (ms)p50 Latency (ms)p90 Latency (ms)
Prompt Shield
ModernGuard PII
Full security profile
Azure Prompt Shield
Full security profile
GuardionAI ModernGuard PII

Frequently asked questions

Is Azure Prompt Shield or GuardionAI ModernGuard PII more secure?

On Guardion's Prompt Attack Risk Benchmark, GuardionAI ModernGuard PII is the more secure of the two: Prompt Shield scores NaN% and ModernGuard PII scores NaN% on F1 score (higher is better).

What is the F1 score of Prompt Shield vs ModernGuard PII?

Prompt Shield scores NaN% F1 and ModernGuard PII scores NaN% F1 on Guardion's prompt-attack benchmark. F1 balances precision and recall — higher is better.

How were Prompt Shield and ModernGuard PII 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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