NVIDIA NeMo Guardrails
Programmable conversational guardrails toolkit using the Colang DSL, covering input, dialog, retrieval, execution and output rails.
| Category | Guardrails & Safety |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | free |
| Pricing notes | Apache-2.0, free; enterprise support via NVIDIA AI Enterprise |
| Framework integrations | langchain, openai-sdk, colang |
| Funding / ownership | NVIDIA |
Pricing/feature source: https://github.com/NVIDIA-NeMo/Guardrails