Meta Prompt Guard 2 86M vs Lakera Guard
Detailed comparison for runtime guardrails
On Guardion's Prompt Attack Risk Benchmark, Lakera Guard is the more secure of the two: Prompt Guard 2 86M scores NaN% and Guard scores NaN% on F1 score (higher is better).
Head-to-Head Overview
Guard is the overall winner in this comparison!
Guardrail Metrics
F1 Score
Accuracy
Precision
Recall
False Positive Rate
False Negative Rate
Average Latency (ms)
p50 Latency (ms)
p90 Latency (ms)
Key Highlights
No specific highlights generated for this comparison.
Security Profile
Outward is better on every axis.
Frequently asked questions
Is Meta Prompt Guard 2 86M or Lakera Guard more secure?
On Guardion's Prompt Attack Risk Benchmark, Lakera Guard is the more secure of the two: Prompt Guard 2 86M scores NaN% and Guard scores NaN% on F1 score (higher is better).
What is the F1 score of Prompt Guard 2 86M vs Guard?
Prompt Guard 2 86M scores NaN% F1 and Guard scores NaN% F1 on Guardion's prompt-attack benchmark. F1 balances precision and recall — higher is better.
How were Prompt Guard 2 86M and Guard 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.