# AI Guardrails

Ranked by the Vioscale composite score: a confidence-weighted blend of independent signals, not user reviews.

| # | Software | Score | Confidence | Vendor |
|--:|---|--:|---|---|
| 1 | [Enkrypt AI](https://www.vioscale.ai/software/enkrypt-ai) | 74.6 | 55% (medium) | - |
| 2 | [Arthur Shield](https://www.vioscale.ai/software/arthur-shield) | 62 | 56% (medium) | - |
| 3 | [NVIDIA NeMo Guardrails](https://www.vioscale.ai/software/nvidia-nemo-guardrails) | 61.3 | 34% (low) | - |
| 4 | [HiddenLayer](https://www.vioscale.ai/software/hiddenlayer) | 59.4 | 21% (low) | - |
| 5 | [Llama Guard](https://www.vioscale.ai/software/llama-guard) | 53.3 | 27% (low) | - |
| 6 | [Lakera Guard](https://www.vioscale.ai/software/lakera-guard) | 48.3 | 55% (medium) | - |
| 7 | [Rebuff](https://www.vioscale.ai/software/rebuff) | 27.4 | 31% (low) | - |

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*Source: Vioscale (https://www.vioscale.ai/categories/ai-guardrails).*