Meta Llama Guard vs Meta Prompt Guard 2 86M
Detailed comparison for runtime guardrails
On Guardion's Prompt Attack Risk Benchmark, Meta Prompt Guard 2 86M is the more secure of the two: Llama 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
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 Llama 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: Llama Guard scores NaN% and Prompt Guard 2 86M scores NaN% on F1 score (higher is better).
What is the F1 score of Llama Guard vs Prompt Guard 2 86M?
Llama 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 Llama 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.