Fiddler AI

Fiddler AI is an enterprise platform that positions itself as the control plane for AI agents, combining monitoring and evaluations, inline policy enforcement, and governance in one system. It covers both agentic and predictive AI, and supports SaaS, VPC, and AWS GovCloud deployments according to the vendor.

What It Is

Fiddler is an AI observability, guardrails, and governance platform for first-party, third-party, and coding agents as well as ML models. Its typical users, per the vendor, are software and AI engineers, data scientists, platform and DevOps teams, and security and compliance teams. Teams use it to see agent performance, evaluate outputs, block policy violations, and keep audit records.

How the Control Plane Works

• Continuous evaluations run from testing through production.
• Agentic observability shows actions, tokens, and cost by user and team.
• Guardrails enforce policy inline on the agent's request and response path. Fiddler states they detect and redact PII, PHI, and secrets, and run in under 80ms.
• Every enforcement decision is recorded to support audit evidence for GRC standards and AI regulations.

Fiddler Centor Models

Fiddler Centor Models power guardrails and evaluations inside the customer's environment without external LLM API calls. Fiddler claims this reduces evaluation TCO by up to 98% compared with foundation models, and offers a TCO calculator for evaluations.

Deployment and Ecosystem

Fiddler says it is model- and cloud-agnostic, working with Azure OpenAI, Amazon Bedrock, LangGraph, and 100+ other providers. Listed partners include Amazon SageMaker AI, Google Cloud, NVIDIA NIM and NeMo Guardrails, Databricks, and Datadog.