Best Guardrails AI Alternatives in 2026
Updated
20 platforms from LLM security tools ranked against Guardrails AI on the same published basis.
- 1Guardrails AI vs PromptGuard
- 2Guardrails AI vs GLACIS
- 3Guardrails AI vs Openlayer Guardrails
- 4Guardrails AI vs Prompt Inspector
- 5Guardrails AI vs Lasso AI Security Platform
- 7Guardrails AI vs Inferwall
- 8Guardrails AI vs Prisma AIRS AI Gateway
- 9Guardrails AI vs VotalAI
- 10Guardrails AI vs WitnessAI
- 11Guardrails AI vs Amazon Nova Reel
- 12Guardrails AI vs Check Point AI Guardrails
- 13Guardrails AI vs Noma Security
- 14Guardrails AI vs GuardionAI
- 15Guardrails AI vs Sanctum Runtime
- 16Guardrails AI vs SecureAI Guard
- 17Guardrails AI vs Amazon Bedrock Guardrails
- 18Guardrails AI vs HiddenLayer AI Guardrails
- 19Guardrails AI vs ZeroTrusted AI Firewall
- 20Guardrails AI vs Microsoft Custom Neural Voice
- 21Guardrails AI vs LLM Guard
Guardrails AI alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | PromptGuard | 7.3 | Free plan | $19/mo | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 2 | GLACIS | 7.2 | Free plan | Free | API, self-hosted, Web |
| 3 | Openlayer Guardrails | 7.2 | Free plan | Free | API, self-hosted, Web |
| 4 | Prompt Inspector | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 5 | Lasso AI Security Platform | 7.0 | No | — | API, Browser, Web |
| 7 | Inferwall | 6.9 | No | — | API, Linux, Mac, Windows |
| 8 | Prisma AIRS AI Gateway | 6.9 | No | — | API, self-hosted, Web |
| 9 | VotalAI | 6.9 | No | — | API, self-hosted, Web |
| 10 | WitnessAI | 6.9 | No | — | API, Web, Windows |
| 11 | Amazon Nova Reel | 6.8 | No | — | API, Web |
| 12 | Check Point AI Guardrails | 6.8 | No | — | API, self-hosted, Web |
| 13 | Noma Security | 6.8 | No | — | API, self-hosted, Web |
| 14 | GuardionAI | 6.7 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 15 | Sanctum Runtime | 6.7 | No | — | Android, API, iOS, Linux, self-hosted, Web |
| 16 | SecureAI Guard | 6.7 | No | $2,999/mo | API, self-hosted, Web |
| 17 | Amazon Bedrock Guardrails | 5.9 | No | $0.07/mo | Web |
| 18 | HiddenLayer AI Guardrails | 5.4 | No | $416666.67/mo | self-hosted, Web |
| 19 | ZeroTrusted AI Firewall | 5.3 | No | — | self-hosted, Web |
| 20 | Microsoft Custom Neural Voice | 5.2 | No | — | Web |
| 21 | LLM Guard | 5.1 | No | — | — |
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Questions about Guardrails AI alternatives
What is the best alternative to Guardrails AI?
PromptGuard, number 1 in LLM security tools with a score of 7.3 out of 10. The others here: GLACIS, Openlayer Guardrails, Prompt Inspector and 16 more.
What is the best free alternative to Guardrails AI?
PromptGuard is the best-ranked alternative with a free plan. 4 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.