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Best ZeroTrusted AI Firewall Alternatives in 2026

Updated

20 platforms from LLM security tools ranked against ZeroTrusted AI Firewall on the same published basis.

  1. 1
    Prompt Inspector Free plan apiLinuxMacself-hostedWeb Free7.2
    ZeroTrusted AI Firewall vs Prompt Inspector
  2. 2
    NVIDIA NeMo Guardrails Free plan apiLinuxMacself-hostedWin Free7.1
    ZeroTrusted AI Firewall vs NVIDIA NeMo Guardrails
  3. 3
    Amazon Bedrock Guardrails Web $0.07/mo7.0
    ZeroTrusted AI Firewall vs Amazon Bedrock Guardrails
  4. 4
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo7.0
    ZeroTrusted AI Firewall vs PromptGuard
  5. 5
    GLACIS Free plan apiself-hostedWeb Free6.9
    ZeroTrusted AI Firewall vs GLACIS
  6. 6
    GuardionAI Free trial apiLinuxMacself-hostedWeb 6.9
    ZeroTrusted AI Firewall vs GuardionAI
  7. 7
    LLM Guard Free plan apiLinuxself-hosted Free6.9
    ZeroTrusted AI Firewall vs LLM Guard
  8. 8
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.9
    ZeroTrusted AI Firewall vs Openlayer Guardrails
  9. 9
    VotalAI Free trial apiself-hostedWeb 6.9
    ZeroTrusted AI Firewall vs VotalAI
  10. 10
    CyberSecEval Free plan apiLinuxself-hosted Free6.8
    ZeroTrusted AI Firewall vs CyberSecEval
  11. 11
    Sanctum Runtime AndroidapiiOSLinuxself-hosted 6.6
    ZeroTrusted AI Firewall vs Sanctum Runtime
  12. 12
    Inferwall apiLinuxMacWin 6.5
    ZeroTrusted AI Firewall vs Inferwall
  13. 13
    WitnessAI apiWebWin 6.5
    ZeroTrusted AI Firewall vs WitnessAI
  14. 14
    Guardrails AI apiself-hostedWeb 6.4
    ZeroTrusted AI Firewall vs Guardrails AI
  15. 15
    Lasso AI Security Platform apiextensionWeb 6.4
    ZeroTrusted AI Firewall vs Lasso AI Security Platform
  16. 16
    Rocotal Web 6.4
    ZeroTrusted AI Firewall vs Rocotal
  17. 17
    Check Point AI Guardrails apiself-hostedWeb 6.3
    ZeroTrusted AI Firewall vs Check Point AI Guardrails
  18. 18
    HiddenLayer AI Guardrails self-hostedWeb $416666.67/mo6.3
    ZeroTrusted AI Firewall vs HiddenLayer AI Guardrails
  19. 19
    Noma Security apiself-hostedWeb 6.3
    ZeroTrusted AI Firewall vs Noma Security
  20. 20
    Prisma AIRS AI Gateway apiself-hostedWeb 6.3
    ZeroTrusted AI Firewall vs Prisma AIRS AI Gateway

ZeroTrusted AI Firewall alternatives compared

#PlatformScoreFree planFromRuns on
1Prompt Inspector7.2Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2NVIDIA NeMo Guardrails7.1Free planFreeAPI, Linux, Mac, self-hosted, Windows
3Amazon Bedrock Guardrails7.0$0.07/moWeb
4PromptGuard7.0Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
5GLACIS6.9Free planFreeAPI, self-hosted, Web
6GuardionAI6.9API, Linux, Mac, self-hosted, Web, Windows
7LLM Guard6.9Free planFreeAPI, Linux, self-hosted
8Openlayer Guardrails6.9Free planFreeAPI, self-hosted, Web
9VotalAI6.9API, self-hosted, Web
10CyberSecEval6.8Free planFreeAPI, Linux, self-hosted
11Sanctum Runtime6.6Android, API, iOS, Linux, self-hosted, Web
12Inferwall6.5API, Linux, Mac, Windows
13WitnessAI6.5API, Web, Windows
14Guardrails AI6.4API, self-hosted, Web
15Lasso AI Security Platform6.4API, Browser, Web
16Rocotal6.4Web
17Check Point AI Guardrails6.3API, self-hosted, Web
18HiddenLayer AI Guardrails6.3$416666.67/moself-hosted, Web
19Noma Security6.3API, self-hosted, Web
20Prisma AIRS AI Gateway6.3API, self-hosted, Web
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Questions about ZeroTrusted AI Firewall alternatives

What is the best alternative to ZeroTrusted AI Firewall?

Prompt Inspector, number 1 in LLM security tools with a score of 7.2 out of 10. The others here: NVIDIA NeMo Guardrails, Amazon Bedrock Guardrails, PromptGuard and 16 more.

What is the best free alternative to ZeroTrusted AI Firewall?

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