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Best HiddenLayer AI Guardrails Alternatives in 2026

Updated

20 apps from LLM security tools ranked against HiddenLayer AI Guardrails on the same published basis.

  1. 1
    Prompt Inspector Free plan apiLinuxMacself-hostedWeb Free6.6
    HiddenLayer AI Guardrails vs Prompt Inspector
  2. 2
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo6.6
    HiddenLayer AI Guardrails vs PromptGuard
  3. 3
    NVIDIA NeMo Guardrails Free plan apiLinuxMacself-hostedWin Free6.5
    HiddenLayer AI Guardrails vs NVIDIA NeMo Guardrails
  4. 4
    Amazon Bedrock Guardrails Web $0.07/mo6.4
    HiddenLayer AI Guardrails vs Amazon Bedrock Guardrails
  5. 5
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.4
    HiddenLayer AI Guardrails vs Openlayer Guardrails
  6. 6
    CyberSecEval Free plan apiLinuxself-hosted Free6.3
    HiddenLayer AI Guardrails vs CyberSecEval
  7. 7
    GLACIS Free plan apiself-hostedWeb Free6.3
    HiddenLayer AI Guardrails vs GLACIS
  8. 8
    LLM Guard Free plan apiLinuxself-hosted Free6.3
    HiddenLayer AI Guardrails vs LLM Guard
  9. 9
    Sanctum Runtime AndroidapiiOSLinuxself-hosted 5.6
    HiddenLayer AI Guardrails vs Sanctum Runtime
  10. 10
    Inferwall apiLinuxMacWin 5.5
    HiddenLayer AI Guardrails vs Inferwall
  11. 11
    WitnessAI apiWebWin 5.5
    HiddenLayer AI Guardrails vs WitnessAI
  12. 12
    Check Point AI Guardrails apiself-hostedWeb 5.4
    HiddenLayer AI Guardrails vs Check Point AI Guardrails
  13. 13
    Guardrails AI apiself-hostedWeb 5.4
    HiddenLayer AI Guardrails vs Guardrails AI
  14. 15
    Lasso AI Security Platform apiextensionWeb 5.4
    HiddenLayer AI Guardrails vs Lasso AI Security Platform
  15. 16
    Noma Security apiself-hostedWeb 5.4
    HiddenLayer AI Guardrails vs Noma Security
  16. 17
    Prisma AIRS AI Gateway apiself-hostedWeb 5.4
    HiddenLayer AI Guardrails vs Prisma AIRS AI Gateway
  17. 18
    Straiker Defend AI apiself-hostedWeb $8333.33/mo5.4
    HiddenLayer AI Guardrails vs Straiker Defend AI
  18. 19
    VotalAI Free trial apiself-hostedWeb 5.4
    HiddenLayer AI Guardrails vs VotalAI
  19. 20
    GuardionAI Free trial apiLinuxMacself-hostedWeb 5.2
    HiddenLayer AI Guardrails vs GuardionAI
  20. 21
    Microsoft Custom Neural Voice Web 5.2
    HiddenLayer AI Guardrails vs Microsoft Custom Neural Voice

HiddenLayer AI Guardrails alternatives compared

#AppScoreFree planFromRuns on
1Prompt Inspector6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2PromptGuard6.6Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
3NVIDIA NeMo Guardrails6.5Free planFreeAPI, Linux, Mac, self-hosted, Windows
4Amazon Bedrock Guardrails6.4No$0.07/moWeb
5Openlayer Guardrails6.4Free planFreeAPI, self-hosted, Web
6CyberSecEval6.3Free planFreeAPI, Linux, self-hosted
7GLACIS6.3Free planFreeAPI, self-hosted, Web
8LLM Guard6.3Free planFreeAPI, Linux, self-hosted
9Sanctum Runtime5.6No—Android, API, iOS, Linux, self-hosted, Web
10Inferwall5.5No—API, Linux, Mac, Windows
11WitnessAI5.5No—API, Web, Windows
12Check Point AI Guardrails5.4No—API, self-hosted, Web
13Guardrails AI5.4No—API, self-hosted, Web
15Lasso AI Security Platform5.4No—API, Browser, Web
16Noma Security5.4No—API, self-hosted, Web
17Prisma AIRS AI Gateway5.4No—API, self-hosted, Web
18Straiker Defend AI5.4No$8333.33/moAPI, self-hosted, Web
19VotalAI5.4No—API, self-hosted, Web
20GuardionAI5.2No—API, Linux, Mac, self-hosted, Web, Windows
21Microsoft Custom Neural Voice5.2No—Web
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Questions about HiddenLayer AI Guardrails alternatives

What is the best alternative to HiddenLayer AI Guardrails?

Prompt Inspector, number 1 in LLM security tools with a score of 6.6 out of 10. The others here: PromptGuard, NVIDIA NeMo Guardrails, Amazon Bedrock Guardrails and 16 more.

What is the best free alternative to HiddenLayer AI Guardrails?

Prompt Inspector is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.