Best WitnessAI Alternatives in 2026
Updated
20 platforms from LLM security tools ranked against WitnessAI on the same published basis.
- 1WitnessAI vs PromptGuard
- 2WitnessAI vs GLACIS
- 3WitnessAI vs LLM Guard
- 4WitnessAI vs NVIDIA NeMo Guardrails
- 5WitnessAI vs Openlayer Guardrails
- 6WitnessAI vs Prompt Inspector
- 7WitnessAI vs CyberSecEval
- 8WitnessAI vs Lasso AI Security Platform
- 9WitnessAI vs Guardrails AI
- 10WitnessAI vs Inferwall
- 11WitnessAI vs Prisma AIRS AI Gateway
- 12WitnessAI vs Sanctum Runtime
- 13WitnessAI vs VotalAI
- 15WitnessAI vs Amazon Nova Reel
- 16WitnessAI vs Check Point AI Guardrails
- 17WitnessAI vs Noma Security
- 18WitnessAI vs Straiker Defend AI
- 19WitnessAI vs GuardionAI
- 20WitnessAI vs SecureAI Guard
- 21WitnessAI vs Cloudflare Advanced Certificate Manager
WitnessAI 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 | LLM Guard | 7.2 | Free plan | Free | API, Linux, self-hosted |
| 4 | NVIDIA NeMo Guardrails | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 5 | Openlayer Guardrails | 7.2 | Free plan | Free | API, self-hosted, Web |
| 6 | Prompt Inspector | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 7 | CyberSecEval | 7.1 | Free plan | Free | API, Linux, self-hosted |
| 8 | Lasso AI Security Platform | 7.0 | API, Browser, Web | ||
| 9 | Guardrails AI | 6.9 | API, self-hosted, Web | ||
| 10 | Inferwall | 6.9 | API, Linux, Mac, Windows | ||
| 11 | Prisma AIRS AI Gateway | 6.9 | API, self-hosted, Web | ||
| 12 | Sanctum Runtime | 6.9 | Android, API, iOS, Linux, self-hosted, Web | ||
| 13 | VotalAI | 6.9 | API, self-hosted, Web | ||
| 15 | Amazon Nova Reel | 6.8 | API, Web | ||
| 16 | Check Point AI Guardrails | 6.8 | API, self-hosted, Web | ||
| 17 | Noma Security | 6.8 | API, self-hosted, Web | ||
| 18 | Straiker Defend AI | 6.8 | $8333.33/mo | API, self-hosted, Web | |
| 19 | GuardionAI | 6.7 | API, Linux, Mac, self-hosted, Web, Windows | ||
| 20 | SecureAI Guard | 6.7 | No | $2,999/mo | API, self-hosted, Web |
| 21 | Cloudflare Advanced Certificate Manager | 6.6 | No | $10/mo | API, Web |
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Questions about WitnessAI alternatives
What is the best alternative to WitnessAI?
PromptGuard, number 1 in LLM security tools with a score of 7.3 out of 10. The others here: GLACIS, LLM Guard, NVIDIA NeMo Guardrails and 16 more.
What is the best free alternative to WitnessAI?
PromptGuard 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 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.