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Best HiddenLayer AI Runtime Security Alternatives in 2026

Updated

20 tools from AI guardrail software ranked against HiddenLayer AI Runtime Security on the same published basis.

  1. 1
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo7.3
    HiddenLayer AI Runtime Security vs PromptGuard
  2. 2
    Enkrypt AI Guardrails Free plan apiself-hostedWeb $134/mo7.1
    HiddenLayer AI Runtime Security vs Enkrypt AI Guardrails
  3. 3
    OpenSecureAI Prompt Firewall Free plan self-hostedWeb $49/mo7.1
    HiddenLayer AI Runtime Security vs OpenSecureAI Prompt Firewall
  4. 4
    Fiddler Guardrails Free plan apiself-hostedWeb Free7.0
    HiddenLayer AI Runtime Security vs Fiddler Guardrails
  5. 5
    Amazon Bedrock Guardrails Web $0.07/mo6.9
    HiddenLayer AI Runtime Security vs Amazon Bedrock Guardrails
  6. 7
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.9
    HiddenLayer AI Runtime Security vs Openlayer Guardrails
  7. 8
    Radware Alteon apiLinuxself-hostedWeb 6.7
    HiddenLayer AI Runtime Security vs Radware Alteon
  8. 9
    Guardrails AI apiself-hostedWeb 6.6
    HiddenLayer AI Runtime Security vs Guardrails AI
  9. 10
    OpenAI Guardrails apiself-hostedWeb 6.6
    HiddenLayer AI Runtime Security vs OpenAI Guardrails
  10. 11
    Pangea AI Guard apiextensionself-hosted 6.5
    HiddenLayer AI Runtime Security vs Pangea AI Guard
  11. 12
    OpenGuardrails apiself-hostedWeb $10/mo6.4
    HiddenLayer AI Runtime Security vs OpenGuardrails
  12. 13
    Oracle Mobile Authenticator AndroidiOSWin 6.4
    HiddenLayer AI Runtime Security vs Oracle Mobile Authenticator
  13. 14
    Microsoft Custom Neural Voice Web 6.0
    HiddenLayer AI Runtime Security vs Microsoft Custom Neural Voice
  14. 15
    PII Firewall Free plan Linuxself-hosted Free5.9
    HiddenLayer AI Runtime Security vs PII Firewall
  15. 16
    Check Point AI Guardrails Web 5.7
    HiddenLayer AI Runtime Security vs Check Point AI Guardrails
  16. 17
    Amazon Nova ReelAmazon Web Services apiWeb 5.6
    HiddenLayer AI Runtime Security vs Amazon Nova Reel
  17. 18
    NVIDIA NeMo Guardrails 5.3
    HiddenLayer AI Runtime Security vs NVIDIA NeMo Guardrails
  18. 19
    VotalAI Free trial apiself-hostedWeb 5.2
    HiddenLayer AI Runtime Security vs VotalAI
  19. 20
    CyberSecEval 5.0
    HiddenLayer AI Runtime Security vs CyberSecEval
  20. 21
    LLM Guard 4.7
    HiddenLayer AI Runtime Security vs LLM Guard

HiddenLayer AI Runtime Security alternatives compared

#ToolScoreFree planFromRuns on
1PromptGuard7.3Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
2Enkrypt AI Guardrails7.1Free plan$134/moAPI, self-hosted, Web
3OpenSecureAI Prompt Firewall7.1Free plan$49/moself-hosted, Web
4Fiddler Guardrails7.0Free planFreeAPI, self-hosted, Web
5Amazon Bedrock Guardrails6.9No$0.07/moWeb
7Openlayer Guardrails6.9Free planFreeAPI, self-hosted, Web
8Radware Alteon6.7No—API, Linux, self-hosted, Web
9Guardrails AI6.6No—API, self-hosted, Web
10OpenAI Guardrails6.6No—API, self-hosted, Web
11Pangea AI Guard6.5No—API, Browser, self-hosted
12OpenGuardrails6.4No$10/moAPI, self-hosted, Web
13Oracle Mobile Authenticator6.4No—Android, iOS, Windows
14Microsoft Custom Neural Voice6.0No—Web
15PII Firewall5.9Free planFreeLinux, self-hosted
16Check Point AI Guardrails5.7No—Web
17Amazon Nova Reel5.6No—API, Web
18NVIDIA NeMo Guardrails5.3No——
19VotalAI5.2No—API, self-hosted, Web
20CyberSecEval5.0No——
21LLM Guard4.7No——
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Questions about HiddenLayer AI Runtime Security alternatives

What is the best alternative to HiddenLayer AI Runtime Security?

PromptGuard, number 1 in AI guardrail software with a score of 7.3 out of 10. The others here: Enkrypt AI Guardrails, OpenSecureAI Prompt Firewall, Fiddler Guardrails and 16 more.

What is the best free alternative to HiddenLayer AI Runtime Security?

PromptGuard is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.