Side by side
Arthur vs Qualdo-MQX
Both stand on 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 Free plan APISelf-hostedWeb
Qualdo-MQX covers several model types and tracks drift, performance changes, and data quality. Check the input dataset requirements and plan limits against your monitoring setup.
Visit Qualdo-MQXThe facts
| Arthur | Qualdo-MQX | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Self-hosted, Web | API, Self-hosted, Web |
| Lowest paid plan | Premium: $60 a month | Starter: $79 a month |
| Plans published | 3 | 3 |
| Maker | Not published | Not published |
| Website | arthur.ai | qualdo.ai |
| On model monitoring software | #9 of 24 | #22 of 24 |
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.
Qualdo-MQX: what it does well
- Monitors drift, accuracy decay, errors, and data quality.
- Supports classification, regression, clustering, and recommendation models.
- Available for Azure, AWS, and Google Cloud.
- Free plan includes up to 10 GB and two models.
What to know first
- Most model types require four datasets as inputs.
- Custom metrics are listed on paid tiers.
- Starter is limited to 10 models and 100 GB.
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