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Best Guardrails AI Alternatives in 2026

Updated

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

  1. 1
    Prompt Inspector Free plan apiLinuxMacself-hostedWeb Free7.2
    Guardrails AI vs Prompt Inspector
  2. 2
    NVIDIA NeMo Guardrails Free plan apiLinuxMacself-hostedWin Free7.1
    Guardrails AI vs NVIDIA NeMo Guardrails
  3. 3
    Amazon Bedrock Guardrails Web $0.07/mo7.0
    Guardrails AI vs Amazon Bedrock Guardrails
  4. 4
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo7.0
    Guardrails AI vs PromptGuard
  5. 5
    GLACIS Free plan apiself-hostedWeb Free6.9
    Guardrails AI vs GLACIS
  6. 6
    GuardionAI Free trial apiLinuxMacself-hostedWeb 6.9
    Guardrails AI vs GuardionAI
  7. 7
    LLM Guard Free plan apiLinuxself-hosted Free6.9
    Guardrails AI vs LLM Guard
  8. 8
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.9
    Guardrails AI vs Openlayer Guardrails
  9. 9
    VotalAI Free trial apiself-hostedWeb 6.9
    Guardrails AI vs VotalAI
  10. 10
    CyberSecEval Free plan apiLinuxself-hosted Free6.8
    Guardrails AI vs CyberSecEval
  11. 11
    Sanctum Runtime AndroidapiiOSLinuxself-hosted 6.6
    Guardrails AI vs Sanctum Runtime
  12. 12
    Inferwall apiLinuxMacWin 6.5
    Guardrails AI vs Inferwall
  13. 13
    WitnessAI apiWebWin 6.5
    Guardrails AI vs WitnessAI
  14. 15
    Lasso AI Security Platform apiextensionWeb 6.4
    Guardrails AI vs Lasso AI Security Platform
  15. 16
    Rocotal Web 6.4
    Guardrails AI vs Rocotal
  16. 17
    Check Point AI Guardrails apiself-hostedWeb 6.3
    Guardrails AI vs Check Point AI Guardrails
  17. 18
    HiddenLayer AI Guardrails self-hostedWeb $416666.67/mo6.3
    Guardrails AI vs HiddenLayer AI Guardrails
  18. 19
    Noma Security apiself-hostedWeb 6.3
    Guardrails AI vs Noma Security
  19. 20
    Prisma AIRS AI Gateway apiself-hostedWeb 6.3
    Guardrails AI vs Prisma AIRS AI Gateway
  20. 21
    Prompt Security AI Red Teaming self-hostedWeb 6.3
    Guardrails AI vs Prompt Security AI Red Teaming

Guardrails AI 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
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
21Prompt Security AI Red Teaming6.3self-hosted, Web
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Questions about Guardrails AI alternatives

What is the best alternative to Guardrails AI?

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 Guardrails AI?

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.