Side by side
Arthur vs FiboRisk Model Monitoring
Both stand on machine learning model monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APISelf-hostedWeb
Arthur combines agent discovery, observability, and policy controls with hosted, on-premises, and hybrid deployment choices. The Free plan has defined use-case, project, and retention limits; Enterprise pricing requires a custom quote.
Visit Arthur Paid Web
FiboRisk pairs model monitoring with versioned evidence and defined organizational roles. Deployment, controls, integrations, and final commercial terms are agreed for each customer environment.
Visit FiboRisk Model MonitoringThe facts
| Arthur | FiboRisk Model Monitoring | |
|---|---|---|
| Free plan | Yes | No |
| Open source | Not published | Not published |
| Runs on | API, Self-hosted, Web | Web |
| Lowest paid plan | Premium: $60 a month | Free or on request |
| Plans published | 3 | 1 |
| Maker | Not published | Not published |
| Website | arthur.ai | fiborisk.ai |
| On machine learning model monitoring software | #6 of 19 | #18 of 19 |
Arthur: what it does well
- Monitors agent activity across several discovery sources.
- Traces tool calls, context, costs, and latency.
- Provides real-time policy verdicts for listed risks.
- Hosted, on-premises, and hybrid deployments are available.
- Free plan includes up to 4 use cases.
What to know first
- Free plan retains data for 7 days.
- Free plan is limited to 2 projects.
- Premium is $60 a month.
- Enterprise pricing is custom.
FiboRisk Model Monitoring: what it does well
- Tracks performance, drift, bias, latency, and outcomes.
- Reviews bias and segments; includes alert management.
- Links evidence across datasets, policies, decisions, and reviewers.
- Evidence records are attributable and exportable within scope.
What to know first
- No free plan or free trial.
- Final pricing follows diagnostic validation and an agreed SOW.
- Production access follows model and environment acceptance.
- Integrations and related costs are scoped in the SOW.
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