AWS Bedrock Guardrails vs Meta Llama Guard

Detailed comparison for runtime guardrails

AWSMeta

On Guardion's Prompt Attack Risk Benchmark, Meta Llama Guard is the more secure of the two: Bedrock Guardrails scores NaN% and Llama Guard 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

Bedrock Guardrails
5.420
Llama Guard
0.000

Accuracy

Bedrock Guardrails
44.440
Llama Guard
0.000

Precision

Bedrock Guardrails
96.340
Llama Guard
0.000

Recall

Bedrock Guardrails
5.740
Llama Guard
0.000

False Positive Rate

Bedrock Guardrails
0.310
Llama Guard
0.000

False Negative Rate

Bedrock Guardrails
94.260
Llama Guard
0.000

Average Latency (ms)

Bedrock Guardrails
0.590
Llama Guard
0.000

p50 Latency (ms)

Bedrock Guardrails
445.265
Llama Guard
0.000

p90 Latency (ms)

Bedrock Guardrails
891.597
Llama Guard
0.000

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)
Bedrock Guardrails
Llama Guard
Full security profile
AWS Bedrock Guardrails
Full security profile
Meta Llama Guard

Frequently asked questions

Is AWS Bedrock Guardrails or Meta Llama Guard more secure?

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

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

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

How were Bedrock Guardrails and Llama 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.

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