Fiddler AI
Fiddler AI takes model outputs and runtime traces, applies inline guardrails and custom evaluators, provides unified observability and visualizations, and returns alerts, metrics, and policy enforcement actions to help teams detect hallucinations, toxicity, and data exposures in production systems.
The official pages show three access options: Free (real-time guardrails), Developer at a usage rate of $0.002 per trace, and Enterprise which requires contacting sales for pricing and purchase details.Is Fiddler AI right for you?
Good for
- Enterprises that need low-latency inline policy enforcement and unified observability across agentic and predictive systems.
- Documents low-latency inline enforcement positioned to stop violations before data leaves the network.
- States Centor models run inside the customer environment to reduce external evaluation calls and associated costs.
Keep in mind
- Enterprise plan pricing, billing cadence, and contract terms are not published on the linked official pages.
- Buyers who require fully self-serve, published Enterprise contract terms and quotas on the public pages; confirm Enterprise limits and contract specifics with Fiddler sales before purchase.
Pricing and plan limits
Developer pricing is documented as "$0.002 per trace"; the linked official pages do not list numeric Enterprise plan prices or billing cadence and instruct buyers to contact sales.
More about capabilities and limits
Documented strengths
Documents low-latency inline enforcement positioned to stop violations before data leaves the network.
States Centor models run inside the customer environment to reduce external evaluation calls and associated costs.
Provides a clear usage metric for Developer billing that maps to a per-trace price.
Limitations to consider
Enterprise plan pricing, billing cadence, and contract terms are not published on the linked official pages.
Choosing a plan
Validate Fiddler by sending production-like traces through the Developer flow, verify the per-trace pricing model maps to your expected volume, and confirm guardrail behavior and observability meet your incident workflow.
Based on the linked product documentation.
Available on
Web.
Official sources
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