Meta Llama Guard vs AWS Bedrock Guardrails

Detailed comparison for runtime guardrails

MetaAWS

On Guardion's Prompt Attack Risk Benchmark, AWS Bedrock Guardrails is the more secure of the two: Llama Guard scores NaN% and Bedrock Guardrails scores NaN% on F1 score (higher is better).

Head-to-Head Overview

Bedrock Guardrails is the overall winner in this comparison!

Guardrail Metrics

F1 Score

Llama Guard
0.000
Bedrock Guardrails
5.420

Accuracy

Llama Guard
0.000
Bedrock Guardrails
44.440

Precision

Llama Guard
0.000
Bedrock Guardrails
96.340

Recall

Llama Guard
0.000
Bedrock Guardrails
5.740

False Positive Rate

Llama Guard
0.000
Bedrock Guardrails
0.310

False Negative Rate

Llama Guard
0.000
Bedrock Guardrails
94.260

Average Latency (ms)

Llama Guard
0.000
Bedrock Guardrails
0.590

p50 Latency (ms)

Llama Guard
0.000
Bedrock Guardrails
445.265

p90 Latency (ms)

Llama Guard
0.000
Bedrock Guardrails
891.597

Key Highlights

  • AWS Bedrock Guardrails has a better F1 Score.
  • AWS Bedrock Guardrails has a better Accuracy.
  • AWS Bedrock Guardrails has a better Precision.
  • AWS Bedrock Guardrails has a better Recall.
  • Meta Llama Guard has a better False Positive Rate.
  • Meta Llama Guard has a better False Negative Rate.
  • Meta Llama Guard has a better Average Latency (ms).
  • Meta Llama Guard has a better p50 Latency (ms).
  • Meta Llama Guard has a better p90 Latency (ms).

Security Profile

Outward is better on every axis.

F1 ScoreAccuracyPrecisionRecallFPRFNRAverage Latency (ms)p50 Latency (ms)p90 Latency (ms)
Llama Guard
Bedrock Guardrails
Full security profile
Meta Llama Guard
Full security profile
AWS Bedrock Guardrails

Frequently asked questions

Is Meta Llama Guard or AWS Bedrock Guardrails more secure?

On Guardion's Prompt Attack Risk Benchmark, AWS Bedrock Guardrails is the more secure of the two: Llama Guard scores NaN% and Bedrock Guardrails scores NaN% on F1 score (higher is better).

What is the F1 score of Llama Guard vs Bedrock Guardrails?

Llama Guard scores NaN% F1 and Bedrock Guardrails scores NaN% F1 on Guardion's prompt-attack benchmark. F1 balances precision and recall — higher is better.

How were Llama Guard and Bedrock Guardrails 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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