Arthur vs Citrusx
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Arthur starts at $60/mo and Citrusx starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Agent discovery
- Step-level tracing
- Runtime guardrails
- Audit logs and lineage
- Custom metrics and alerts
- Model validation
- Real-time error alerts
- Explainability reports
- RAG evaluation
- Python SDK
| Feature | Arthur | Citrusx |
|---|---|---|
| Best for | Discovery, monitoring and governance for enterprise AI agents | Validation, explainability and live monitoring for AI and LLM models |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Paid |
| Starting price | $60/mo | See pricing page |
| Free plan | Yes | No |
| Made by | Arthur AI | Citrusx |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Arthur starts at $60/mo and Citrusx starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Up to 4 monitored use cases
- Unlimited seats
- Cloud data connectors
Premium
$60/mo
- Up to 100 use cases
- Custom metrics and dashboards
- Custom alerts and webhooks
Enterprise
Contact sales
- Dedicated infrastructure
- Governance and support
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Arthur
- Finds shadow agents across environments
- Free tier with unlimited seats
- Covers security and evaluation together
- Free tier monitors only 4 use cases
- Enterprise features need a sales call
- Broad platform takes time to set up
Citrusx
- Serves data science and risk teams together
- Works with any model type
- Live alerts on production errors
- No self-serve sign-up
- Pricing not public
- Mostly relevant to regulated industries
Which one should you choose?
Choose Arthur if you want:
- Finds shadow agents across environments
- Free tier with unlimited seats
- Covers security and evaluation together
Watch out: free tier monitors only 4 use cases.
Choose Citrusx if you want:
- Serves data science and risk teams together
- Works with any model type
- Live alerts on production errors
Watch out: no self-serve sign-up.
Arthur vs Citrusx FAQ
What is the difference between Arthur and Citrusx?
Arthur: Discovery, monitoring and governance for enterprise AI agents. Citrusx: Validation, explainability and live monitoring for AI and LLM models. Both are models & apis tools.
Is Arthur or Citrusx cheaper?
Arthur starts at $60/mo and Citrusx starts at See pricing page. Check both pricing pages for current plans.
Do Arthur and Citrusx have free plans?
Arthur: Yes. Citrusx: No.
Who makes Arthur?
Arthur is made by Arthur AI, based in United States.
Who makes Citrusx?
Citrusx is made by Citrusx.
Which should I choose, Arthur or Citrusx?
Choose Arthur if you value finds shadow agents across environments and free tier with unlimited seats. Choose Citrusx if you value serves data science and risk teams together and works with any model type.