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Best OpenSecureAI Prompt Firewall Alternatives in 2026

Updated

20 platforms from AI guardrail software ranked against OpenSecureAI Prompt Firewall on the same published basis.

  1. 1
    Enkrypt AI Guardrails Free plan apiself-hostedWeb $134/mo7.1
    OpenSecureAI Prompt Firewall vs Enkrypt AI Guardrails
  2. 2
    NVIDIA NeMo Guardrails Free plan apiLinuxMacself-hostedWin Free7.1
    OpenSecureAI Prompt Firewall vs NVIDIA NeMo Guardrails
  3. 4
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo7.1
    OpenSecureAI Prompt Firewall vs PromptGuard
  4. 5
    Fiddler Guardrails Free plan apiself-hostedWeb Free7.0
    OpenSecureAI Prompt Firewall vs Fiddler Guardrails
  5. 6
    Openlayer Guardrails Free plan apiself-hostedWeb Free7.0
    OpenSecureAI Prompt Firewall vs Openlayer Guardrails
  6. 7
    Amazon Bedrock Guardrails Web $0.07/mo6.9
    OpenSecureAI Prompt Firewall vs Amazon Bedrock Guardrails
  7. 8
    VotalAI Free trial apiself-hostedWeb 6.9
    OpenSecureAI Prompt Firewall vs VotalAI
  8. 9
    CyberSecEval Free plan apiLinuxself-hosted Free6.8
    OpenSecureAI Prompt Firewall vs CyberSecEval
  9. 10
    LLM Guard Free plan apiLinuxself-hosted Free6.8
    OpenSecureAI Prompt Firewall vs LLM Guard
  10. 11
    PII Firewall Free plan Linuxself-hosted Free6.7
    OpenSecureAI Prompt Firewall vs PII Firewall
  11. 12
    HiddenLayer AI Runtime Security apiLinuxself-hostedWeb 6.6
    OpenSecureAI Prompt Firewall vs HiddenLayer AI Runtime Security
  12. 13
    Guardrails AI apiself-hostedWeb 6.4
    OpenSecureAI Prompt Firewall vs Guardrails AI
  13. 14
    OpenAI Guardrails apiself-hostedWeb 6.4
    OpenSecureAI Prompt Firewall vs OpenAI Guardrails
  14. 15
    Pangea AI Guard apiextensionself-hosted 6.4
    OpenSecureAI Prompt Firewall vs Pangea AI Guard
  15. 16
    Radware Alteon apiLinuxself-hostedWeb 6.3
    OpenSecureAI Prompt Firewall vs Radware Alteon
  16. 17
    Check Point AI Guardrails apiself-hostedWeb 6.2
    OpenSecureAI Prompt Firewall vs Check Point AI Guardrails
  17. 18
    OpenGuardrails apiself-hostedWeb $10/mo6.1
    OpenSecureAI Prompt Firewall vs OpenGuardrails
  18. 19
    Oracle Mobile Authenticator Free plan AndroidiOSWin Free6.1
    OpenSecureAI Prompt Firewall vs Oracle Mobile Authenticator
  19. 20
    Amazon Nova ReelAmazon Web Services apiWeb 6.0
    OpenSecureAI Prompt Firewall vs Amazon Nova Reel
  20. 21
    Microsoft Custom Neural Voice Web 5.9
    OpenSecureAI Prompt Firewall vs Microsoft Custom Neural Voice

OpenSecureAI Prompt Firewall alternatives compared

#PlatformScoreFree planFromRuns on
1Enkrypt AI Guardrails7.1Free plan$134/moAPI, self-hosted, Web
2NVIDIA NeMo Guardrails7.1Free planFreeAPI, Linux, Mac, self-hosted, Windows
4PromptGuard7.1Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
5Fiddler Guardrails7.0Free planFreeAPI, self-hosted, Web
6Openlayer Guardrails7.0Free planFreeAPI, self-hosted, Web
7Amazon Bedrock Guardrails6.9$0.07/moWeb
8VotalAI6.9API, self-hosted, Web
9CyberSecEval6.8Free planFreeAPI, Linux, self-hosted
10LLM Guard6.8Free planFreeAPI, Linux, self-hosted
11PII Firewall6.7Free planFreeLinux, self-hosted
12HiddenLayer AI Runtime Security6.6API, Linux, self-hosted, Web
13Guardrails AI6.4API, self-hosted, Web
14OpenAI Guardrails6.4API, self-hosted, Web
15Pangea AI Guard6.4API, Browser, self-hosted
16Radware Alteon6.3API, Linux, self-hosted, Web
17Check Point AI Guardrails6.2API, self-hosted, Web
18OpenGuardrails6.1No$10/moAPI, self-hosted, Web
19Oracle Mobile Authenticator6.1Free planFreeAndroid, iOS, Windows
20Amazon Nova Reel6.0API, Web
21Microsoft Custom Neural Voice5.9Web
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Questions about OpenSecureAI Prompt Firewall alternatives

What is the best alternative to OpenSecureAI Prompt Firewall?

Enkrypt AI Guardrails, number 1 in AI guardrail software with a score of 7.1 out of 10. The others here: NVIDIA NeMo Guardrails, PromptGuard, Fiddler Guardrails and 16 more.

What is the best free alternative to OpenSecureAI Prompt Firewall?

Enkrypt AI Guardrails is the best-ranked alternative with a free plan. 9 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.