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Best OpenAI Guardrails Alternatives in 2026

Updated

17 apps from AI guardrail software ranked against OpenAI Guardrails on the same published basis.

  1. 1
    Enkrypt AI Guardrails Free plan apiself-hostedWeb $134/mo8.3
    OpenAI Guardrails vs Enkrypt AI Guardrails
  2. 2
    Amazon Bedrock Guardrails Web $0.07/mo7.5
    OpenAI Guardrails vs Amazon Bedrock Guardrails
  3. 4
    Fiddler Guardrails Free plan apiself-hostedWeb Free7.3
    OpenAI Guardrails vs Fiddler Guardrails
  4. 5
    Openlayer Guardrails Free plan apiself-hostedWeb Free7.2
    OpenAI Guardrails vs Openlayer Guardrails
  5. 6
    HiddenLayer AI Runtime Security apiLinuxself-hostedWeb 6.9
    OpenAI Guardrails vs HiddenLayer AI Runtime Security
  6. 7
    VotalAI Web 6.7
    OpenAI Guardrails vs VotalAI
  7. 8
    OpenSecureAI Prompt Firewall Free plan self-hostedWeb $49/mo6.7
    OpenAI Guardrails vs OpenSecureAI Prompt Firewall
  8. 9
    Pangea AI Guard apiextensionself-hosted 6.6
    OpenAI Guardrails vs Pangea AI Guard
  9. 10
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo6.5
    OpenAI Guardrails vs PromptGuard
  10. 11
    NVIDIA NeMo Guardrails 6.4
    OpenAI Guardrails vs NVIDIA NeMo Guardrails
  11. 12
    Guardrails AI apiself-hostedWeb 6.2
    OpenAI Guardrails vs Guardrails AI
  12. 13
    OpenGuardrails apiself-hostedWeb $10/mo6.0
    OpenAI Guardrails vs OpenGuardrails
  13. 14
    Check Point AI Guardrails Web 5.8
    OpenAI Guardrails vs Check Point AI Guardrails
  14. 15
    PII Firewall Linux 5.1
    OpenAI Guardrails vs PII Firewall
  15. 16
    Microsoft Custom Neural Voice Web 5.1
    OpenAI Guardrails vs Microsoft Custom Neural Voice
  16. 17
    CyberSecEval 4.9
    OpenAI Guardrails vs CyberSecEval
  17. 18
    LLM Guard 4.8
    OpenAI Guardrails vs LLM Guard

OpenAI Guardrails alternatives compared

#AppScoreFree planFromRuns on
1Enkrypt AI Guardrails8.3Free plan$134/moAPI, self-hosted, Web
2Amazon Bedrock Guardrails7.5No$0.07/moWeb
4Fiddler Guardrails7.3Free planFreeAPI, self-hosted, Web
5Openlayer Guardrails7.2Free planFreeAPI, self-hosted, Web
6HiddenLayer AI Runtime Security6.9No—API, Linux, self-hosted, Web
7VotalAI6.7No—Web
8OpenSecureAI Prompt Firewall6.7Free plan$49/moself-hosted, Web
9Pangea AI Guard6.6No—API, Browser, self-hosted
10PromptGuard6.5Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
11NVIDIA NeMo Guardrails6.4No——
12Guardrails AI6.2No—API, self-hosted, Web
13OpenGuardrails6.0No$10/moAPI, self-hosted, Web
14Check Point AI Guardrails5.8No—Web
15PII Firewall5.1No—Linux
16Microsoft Custom Neural Voice5.1No—Web
17CyberSecEval4.9No——
18LLM Guard4.8No——
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Questions about OpenAI Guardrails alternatives

What is the best alternative to OpenAI Guardrails?

Enkrypt AI Guardrails, number 1 in AI guardrail software with a score of 8.3 out of 10. The others here: Amazon Bedrock Guardrails, Fiddler Guardrails, Openlayer Guardrails and 13 more.

What is the best free alternative to OpenAI Guardrails?

Enkrypt AI Guardrails is the best-ranked alternative with a free plan. 5 of the 17 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.