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Best WitnessAI Alternatives in 2026

Updated

20 apps from LLM security tools ranked against WitnessAI on the same published basis.

  1. 1
    Prompt Inspector Free plan apiLinuxMacself-hostedWeb Free6.6
    WitnessAI vs Prompt Inspector
  2. 2
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo6.6
    WitnessAI vs PromptGuard
  3. 3
    NVIDIA NeMo Guardrails Free plan apiLinuxMacself-hostedWin Free6.5
    WitnessAI vs NVIDIA NeMo Guardrails
  4. 4
    Amazon Bedrock Guardrails Web $0.07/mo6.4
    WitnessAI vs Amazon Bedrock Guardrails
  5. 5
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.4
    WitnessAI vs Openlayer Guardrails
  6. 6
    CyberSecEval Free plan apiLinuxself-hosted Free6.3
    WitnessAI vs CyberSecEval
  7. 7
    GLACIS Free plan apiself-hostedWeb Free6.3
    WitnessAI vs GLACIS
  8. 8
    LLM Guard Free plan apiLinuxself-hosted Free6.3
    WitnessAI vs LLM Guard
  9. 9
    Sanctum Runtime AndroidapiiOSLinuxself-hosted 5.6
    WitnessAI vs Sanctum Runtime
  10. 10
    Inferwall apiLinuxMacWin 5.5
    WitnessAI vs Inferwall
  11. 12
    Check Point AI Guardrails apiself-hostedWeb 5.4
    WitnessAI vs Check Point AI Guardrails
  12. 13
    Guardrails AI apiself-hostedWeb 5.4
    WitnessAI vs Guardrails AI
  13. 14
    HiddenLayer AI Guardrails self-hostedWeb $416666.67/mo5.4
    WitnessAI vs HiddenLayer AI Guardrails
  14. 15
    Lasso AI Security Platform apiextensionWeb 5.4
    WitnessAI vs Lasso AI Security Platform
  15. 16
    Noma Security apiself-hostedWeb 5.4
    WitnessAI vs Noma Security
  16. 17
    Prisma AIRS AI Gateway apiself-hostedWeb 5.4
    WitnessAI vs Prisma AIRS AI Gateway
  17. 18
    Prompt Security AI Red Teaming self-hostedWeb 5.4
    WitnessAI vs Prompt Security AI Red Teaming
  18. 19
    Rocotal Web 5.4
    WitnessAI vs Rocotal
  19. 20
    Straiker Defend AI apiself-hostedWeb $8333.33/mo5.4
    WitnessAI vs Straiker Defend AI
  20. 21
    VotalAI Free trial apiself-hostedWeb 5.4
    WitnessAI vs VotalAI

WitnessAI alternatives compared

#AppScoreFree planFromRuns on
1Prompt Inspector6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2PromptGuard6.6Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
3NVIDIA NeMo Guardrails6.5Free planFreeAPI, Linux, Mac, self-hosted, Windows
4Amazon Bedrock Guardrails6.4$0.07/moWeb
5Openlayer Guardrails6.4Free planFreeAPI, self-hosted, Web
6CyberSecEval6.3Free planFreeAPI, Linux, self-hosted
7GLACIS6.3Free planFreeAPI, self-hosted, Web
8LLM Guard6.3Free planFreeAPI, Linux, self-hosted
9Sanctum Runtime5.6Android, API, iOS, Linux, self-hosted, Web
10Inferwall5.5API, Linux, Mac, Windows
12Check Point AI Guardrails5.4API, self-hosted, Web
13Guardrails AI5.4API, self-hosted, Web
14HiddenLayer AI Guardrails5.4$416666.67/moself-hosted, Web
15Lasso AI Security Platform5.4API, Browser, Web
16Noma Security5.4API, self-hosted, Web
17Prisma AIRS AI Gateway5.4API, self-hosted, Web
18Prompt Security AI Red Teaming5.4self-hosted, Web
19Rocotal5.4Web
20Straiker Defend AI5.4$8333.33/moAPI, self-hosted, Web
21VotalAI5.4API, self-hosted, Web
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Questions about WitnessAI alternatives

What is the best alternative to WitnessAI?

Prompt Inspector, number 1 in LLM security tools with a score of 6.6 out of 10. The others here: PromptGuard, NVIDIA NeMo Guardrails, Amazon Bedrock Guardrails and 16 more.

What is the best free alternative to WitnessAI?

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 free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.