Best OpenSecureAI Prompt Firewall Alternatives in 2026
Updated
20 platforms from AI guardrail software ranked against OpenSecureAI Prompt Firewall on the same published basis.
- 1OpenSecureAI Prompt Firewall vs Enkrypt AI Guardrails
- 2OpenSecureAI Prompt Firewall vs Fiddler Guardrails
- 3OpenSecureAI Prompt Firewall vs Openlayer Guardrails
- 4OpenSecureAI Prompt Firewall vs PromptGuard
- 5OpenSecureAI Prompt Firewall vs CyberSecEval
- 6OpenSecureAI Prompt Firewall vs NVIDIA NeMo Guardrails
- 7OpenSecureAI Prompt Firewall vs LLM Guard
- 8OpenSecureAI Prompt Firewall vs HiddenLayer AI Runtime Security
- 9OpenSecureAI Prompt Firewall vs Pangea AI Guard
- 10OpenSecureAI Prompt Firewall vs Guardrails AI
- 11OpenSecureAI Prompt Firewall vs OpenAI Guardrails
- 12OpenSecureAI Prompt Firewall vs VotalAI
- 13OpenSecureAI Prompt Firewall vs Amazon Nova Reel
- 14OpenSecureAI Prompt Firewall vs Check Point AI Guardrails
- 15OpenSecureAI Prompt Firewall vs OpenGuardrails
- 16OpenSecureAI Prompt Firewall vs Radware Alteon
- 18OpenSecureAI Prompt Firewall vs Amazon Bedrock Guardrails
- 19OpenSecureAI Prompt Firewall vs PII Firewall
- 20OpenSecureAI Prompt Firewall vs Microsoft Custom Neural Voice
- 21OpenSecureAI Prompt Firewall vs Oracle Mobile Authenticator
OpenSecureAI Prompt Firewall alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Enkrypt AI Guardrails | 7.4 | Free plan | $134/mo | API, self-hosted, Web |
| 2 | Fiddler Guardrails | 7.3 | Free plan | Free | API, self-hosted, Web |
| 3 | Openlayer Guardrails | 7.3 | Free plan | Free | API, self-hosted, Web |
| 4 | PromptGuard | 7.3 | Free plan | $19/mo | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 5 | CyberSecEval | 7.2 | Free plan | Free | API, Linux, self-hosted |
| 6 | NVIDIA NeMo Guardrails | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 7 | LLM Guard | 7.1 | Free plan | Free | API, Linux, self-hosted |
| 8 | HiddenLayer AI Runtime Security | 7.0 | No | — | API, Linux, self-hosted, Web |
| 9 | Pangea AI Guard | 7.0 | No | — | API, Browser, self-hosted |
| 10 | Guardrails AI | 6.9 | No | — | API, self-hosted, Web |
| 11 | OpenAI Guardrails | 6.9 | No | — | API, self-hosted, Web |
| 12 | VotalAI | 6.9 | No | — | API, self-hosted, Web |
| 13 | Amazon Nova Reel | 6.8 | No | — | API, Web |
| 14 | Check Point AI Guardrails | 6.8 | No | — | API, self-hosted, Web |
| 15 | OpenGuardrails | 6.8 | No | $10/mo | API, self-hosted, Web |
| 16 | Radware Alteon | 6.8 | No | — | API, Linux, self-hosted, Web |
| 18 | Amazon Bedrock Guardrails | 5.9 | No | $0.07/mo | Web |
| 19 | PII Firewall | 5.8 | Free plan | Free | Linux, self-hosted |
| 20 | Microsoft Custom Neural Voice | 5.2 | No | — | Web |
| 21 | Oracle Mobile Authenticator | 5.2 | No | — | Android, iOS, Windows |
The sponsored alternative slot on this page is labelled Sponsored.
Questions about OpenSecureAI Prompt Firewall alternatives
What is the best alternative to OpenSecureAI Prompt Firewall?
Enkrypt AI Guardrails, number 1 in AI guardrail software with a score of 7.4 out of 10. The others here: Fiddler Guardrails, Openlayer Guardrails, PromptGuard and 16 more.
What is the best free alternative to OpenSecureAI Prompt Firewall?
Enkrypt AI Guardrails is the best-ranked alternative with a free plan. 8 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.