Arthur
Model monitoring and firewall (Arthur Shield) for enterprise AI, focused on risk, bias and policy enforcement.
| Category | Guardrails & Safety |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | freemium |
| Pricing notes | Open-sourced engine components; enterprise platform custom-priced |
| Framework integrations | openai-sdk, langchain |
| Funding / ownership | $42M Series B (2022) |
Pricing/feature source: https://www.arthur.ai