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Best Prompt Inspector Alternatives in 2026

Updated

20 platforms from LLM security tools ranked against Prompt Inspector on the same published basis.

  1. 2
    Amazon Bedrock Guardrails Web $0.07/mo7.0
    Prompt Inspector vs Amazon Bedrock Guardrails
  2. 3
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo7.0
    Prompt Inspector vs PromptGuard
  3. 4
    GLACIS Free plan apiself-hostedWeb Free6.9
    Prompt Inspector vs GLACIS
  4. 5
    GuardionAI Free trial apiLinuxMacself-hostedWeb 6.9
    Prompt Inspector vs GuardionAI
  5. 6
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.9
    Prompt Inspector vs Openlayer Guardrails
  6. 7
    VotalAI Free trial apiself-hostedWeb 6.9
    Prompt Inspector vs VotalAI
  7. 8
    Inferwall apiLinuxMacWin 6.5
    Prompt Inspector vs Inferwall
  8. 9
    WitnessAI apiWebWin 6.5
    Prompt Inspector vs WitnessAI
  9. 10
    Guardrails AI apiself-hostedWeb 6.4
    Prompt Inspector vs Guardrails AI
  10. 11
    Lasso AI Security Platform apiextensionWeb 6.4
    Prompt Inspector vs Lasso AI Security Platform
  11. 12
    Check Point AI Guardrails apiself-hostedWeb 6.3
    Prompt Inspector vs Check Point AI Guardrails
  12. 13
    HiddenLayer AI Guardrails self-hostedWeb $416666.67/mo6.3
    Prompt Inspector vs HiddenLayer AI Guardrails
  13. 14
    Noma Security apiself-hostedWeb 6.3
    Prompt Inspector vs Noma Security
  14. 15
    Prisma AIRS AI Gateway apiself-hostedWeb 6.3
    Prompt Inspector vs Prisma AIRS AI Gateway
  15. 16
    Sanctum Runtime AndroidapiiOSLinuxself-hosted 6.3
    Prompt Inspector vs Sanctum Runtime
  16. 17
    SecureAI Guard apiself-hostedWeb $2,999/mo6.1
    Prompt Inspector vs SecureAI Guard
  17. 18
    Amazon Nova ReelAmazon Web Services apiWeb 6.0
    Prompt Inspector vs Amazon Nova Reel
  18. 19
    ZeroTrusted AI Firewall self-hostedWeb 6.0
    Prompt Inspector vs ZeroTrusted AI Firewall
  19. 20
    Microsoft Custom Neural Voice Web 5.9
    Prompt Inspector vs Microsoft Custom Neural Voice
  20. 21
    Straiker Defend AI apiself-hostedWeb $8333.33/mo5.8
    Prompt Inspector vs Straiker Defend AI

Prompt Inspector alternatives compared

#PlatformScoreFree planFromRuns on
2Amazon Bedrock Guardrails7.0No$0.07/moWeb
3PromptGuard7.0Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
4GLACIS6.9Free planFreeAPI, self-hosted, Web
5GuardionAI6.9No—API, Linux, Mac, self-hosted, Web, Windows
6Openlayer Guardrails6.9Free planFreeAPI, self-hosted, Web
7VotalAI6.9No—API, self-hosted, Web
8Inferwall6.5No—API, Linux, Mac, Windows
9WitnessAI6.5No—API, Web, Windows
10Guardrails AI6.4No—API, self-hosted, Web
11Lasso AI Security Platform6.4No—API, Browser, Web
12Check Point AI Guardrails6.3No—API, self-hosted, Web
13HiddenLayer AI Guardrails6.3No$416666.67/moself-hosted, Web
14Noma Security6.3No—API, self-hosted, Web
15Prisma AIRS AI Gateway6.3No—API, self-hosted, Web
16Sanctum Runtime6.3No—Android, API, iOS, Linux, self-hosted, Web
17SecureAI Guard6.1No$2,999/moAPI, self-hosted, Web
18Amazon Nova Reel6.0No—API, Web
19ZeroTrusted AI Firewall6.0No—self-hosted, Web
20Microsoft Custom Neural Voice5.9No—Web
21Straiker Defend AI5.8No$8333.33/moAPI, self-hosted, Web
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Questions about Prompt Inspector alternatives

What is the best alternative to Prompt Inspector?

Amazon Bedrock Guardrails, number 2 in LLM security tools with a score of 7.0 out of 10. The others here: PromptGuard, GLACIS, GuardionAI and 16 more.

What is the best free alternative to Prompt Inspector?

PromptGuard is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.