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Head-to-head · LLM Security Tools

Amazon Bedrock Guardrails vs PromptGuard

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Amazon Bedrock Guardrails #4 in LLM Security Tools 9.0/10 Paid ✓ 4 of 5 features Visit AWS
PromptGuard #5 in LLM Security Tools 8.9/10 Free plan Free plan✓ 0 of 5 features Visit PromptGuard

Amazon Bedrock Guardrails leads on 0 checks, PromptGuard on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAmazon Bedrock Guardrails · 9.0/10
  • Free planonly PromptGuard
  • Most featuresAmazon Bedrock Guardrails · 4 of 5

Amazon Bedrock Guardrails scores higher on our rubric for llm security tools: 9.0 against 8.9 out of 10; our editors rank them #4 and #5.

PromptGuard offers free plan; Amazon Bedrock Guardrails doesn't.

Amazon Bedrock Guardrails is the better fit for AWS-centric teams needing managed guardrails. PromptGuard is the better fit for affordable teams needing LLM red teaming.

  • Amazon Bedrock Guardrails fits best

    AWS-centric teams needing managed guardrails

  • PromptGuard fits best

    Affordable teams needing LLM red teaming

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Side by side

Feature Amazon Bedrock Guardrails 9.0/10 Visit ↗ PromptGuard 8.9/10 Visit ↗
At a glance
Editor score 9.0 8.9
Ranking #4 in LLM Security Tools #5 in LLM Security Tools
Best for AWS-centric teams needing managed guardrails Affordable teams needing LLM red teaming
Pricing model Paid Free plan + paid
Starting price $0.00075/unit usage-based $19/seat/mo
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud, Self-hosted, Desktop, Browser extension
Platforms Web Web, Windows, macOS, Chrome extension
Support Docs Email, Community, Docs
Integrations 7 integrations 12 integrations
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Amazon Bedrock Guardrails 4/5 · PromptGuard 0/5
Prompt injection defense ✓ (best) Not checked yet
PII redaction ✓ (best) Not checked yet
Secrets detection ✓ (best) Not checked yet
Output guardrails ✓ (best) Not checked yet
Model-abuse detection Not checked yet Not checked yet
Specs
Deployment model Cloud Not checked yet
Our review
Pros
  • Covers prompt attacks, PII, secrets, harmful content, and denied topics
  • Supports Bedrock Agents, Knowledge Bases, Flows, and third-party models
  • ApplyGuardrail evaluates content without invoking a model
  • Automated assessments cover 20+ attack vectors and fuzzed variants
  • Integrates with OpenAI, Anthropic, Gemini, Bedrock, Mistral, and more
  • Supports CI/CD regression testing, API scanning, and tool-call validation
Cons
  • No free plan is available
  • Usage-based pricing spans multiple evaluation categories
  • Its deepest integrations are centered on the AWS ecosystem
  • The Free plan includes only prompt injection and PII detection
  • Scale and Premium do not show prices in the published plan details
  • Advanced enterprise controls are concentrated in the Enterprise plan
Our verdict

Amazon Bedrock Guardrails provides configurable safeguards for generative AI applications. It evaluates user inputs and model responses with content filters, denied topics, word filters, sensitive-information filters, contextual grounding…

Read the review →

PromptGuard is an AI security platform for teams that need to test and protect LLM applications across development and production. It sits between applications and model providers, detecting prompt injection, jailbreak attempts, PII…

Read the review →
  1. Amazon Bedrock GuardrailsLLM Security Tools 9.0Paid
  2. PromptGuardLLM Security Tools 8.9Free plan

Strengths and trade-offs

  • Amazon Bedrock Guardrails — where it wins

    • Covers prompt attacks, PII, secrets, harmful content, and denied topics
    • Supports Bedrock Agents, Knowledge Bases, Flows, and third-party models
    • ApplyGuardrail evaluates content without invoking a model

    Where it doesn't

    • No free plan is available
    • Usage-based pricing spans multiple evaluation categories
    • Its deepest integrations are centered on the AWS ecosystem

  • PromptGuard — where it wins

    • Automated assessments cover 20+ attack vectors and fuzzed variants
    • Integrates with OpenAI, Anthropic, Gemini, Bedrock, Mistral, and more
    • Supports CI/CD regression testing, API scanning, and tool-call validation

    Where it doesn't

    • The Free plan includes only prompt injection and PII detection
    • Scale and Premium do not show prices in the published plan details
    • Advanced enterprise controls are concentrated in the Enterprise plan

More comparisons

All LLM security tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update