Lakera Guard vs Meta Prompt Guard 2 86M

Detailed comparison for runtime guardrails

LakeraMeta

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

Head-to-Head Overview

Prompt Guard 2 86M is the overall winner in this comparison!

Guardrail Metrics

F1 Score

Guard
0.000
Prompt Guard 2 86M
0.000

Accuracy

Guard
0.000
Prompt Guard 2 86M
0.000

Precision

Guard
0.000
Prompt Guard 2 86M
0.000

Recall

Guard
0.000
Prompt Guard 2 86M
0.000

False Positive Rate

Guard
0.000
Prompt Guard 2 86M
0.000

False Negative Rate

Guard
0.000
Prompt Guard 2 86M
0.000

Average Latency (ms)

Guard
0.000
Prompt Guard 2 86M
0.000

p50 Latency (ms)

Guard
0.000
Prompt Guard 2 86M
0.000

p90 Latency (ms)

Guard
0.000
Prompt Guard 2 86M
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)
Guard
Prompt Guard 2 86M
Full security profile
Lakera Guard
Full security profile
Meta Prompt Guard 2 86M

Frequently asked questions

Is Lakera Guard or Meta Prompt Guard 2 86M more secure?

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

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

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

How were Guard and Prompt Guard 2 86M 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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