Meta Prompt Guard 2 86M vs Azure PromptShield

Detailed comparison for runtime guardrails

MetaAzure

On Guardion's Prompt Attack Risk Benchmark, Azure PromptShield is the more secure of the two: Prompt Guard 2 86M scores NaN% and PromptShield scores NaN% on F1 score (higher is better).

Head-to-Head Overview

PromptShield is the overall winner in this comparison!

Guardrail Metrics

F1 Score

Prompt Guard 2 86M
0.000
PromptShield
0.000

Accuracy

Prompt Guard 2 86M
0.000
PromptShield
0.000

Precision

Prompt Guard 2 86M
0.000
PromptShield
0.000

Recall

Prompt Guard 2 86M
0.000
PromptShield
0.000

False Positive Rate

Prompt Guard 2 86M
0.000
PromptShield
0.000

False Negative Rate

Prompt Guard 2 86M
0.000
PromptShield
0.000

Average Latency (ms)

Prompt Guard 2 86M
0.000
PromptShield
0.000

p50 Latency (ms)

Prompt Guard 2 86M
0.000
PromptShield
0.000

p90 Latency (ms)

Prompt Guard 2 86M
0.000
PromptShield
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)
Prompt Guard 2 86M
PromptShield
Full security profile
Meta Prompt Guard 2 86M
Full security profile
Azure PromptShield

Frequently asked questions

Is Meta Prompt Guard 2 86M or Azure PromptShield more secure?

On Guardion's Prompt Attack Risk Benchmark, Azure PromptShield is the more secure of the two: Prompt Guard 2 86M scores NaN% and PromptShield scores NaN% on F1 score (higher is better).

What is the F1 score of Prompt Guard 2 86M vs PromptShield?

Prompt Guard 2 86M scores NaN% F1 and PromptShield scores NaN% F1 on Guardion's prompt-attack benchmark. F1 balances precision and recall — higher is better.

How were Prompt Guard 2 86M and PromptShield 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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