Fiddler AI
Fiddler Labs, Inc.
AI observability and security platform for enterprise ML and LLM applications
Last verified April 26, 2026Quick facts: Fiddler AI is an AI compliance vendor founded in 2018 and headquartered in Palo Alto, US. The vendor publicly documents coverage for EU AI Act and HIPAA. Pricing is tiered. Profile last verified April 26, 2026, with every claim traceable to a cited public source.
About Fiddler AI
Fiddler AI provides an observability and security platform that monitors, analyzes, explains, and governs predictive ML models, generative AI, and agentic applications across their lifecycle. The platform offers visibility into agent behaviors, root cause analysis for failures, real-time guardrails for safety, faithfulness, PII detection, and policy enforcement. It supports enterprises in building trust through continuous monitoring, auditable logs, and evidence collection for compliance needs like GDPR and HIPAA. Targeted at Fortune 500 companies, particularly in financial services for use cases like fraud detection, risk assessment, and chatbots, Fiddler distinguishes itself with agentic observability, Fiddler Trust Models for cost-effective evaluations, and native integrations with tools like LangGraph and AWS SageMaker. Fiddler homepage, product page, financial services, about.
Featured in
Fiddler AI is ranked in the following independent collections.
Frameworks supported
Regulations and voluntary standards Fiddler AI documents support for on their own materials. Chip shading reflects the strength of the claim, not an independent audit.
Regulation · EU · in force
Regulation · United States · active
Fiddler AI features
Capabilities Fiddler AI markets publicly. Inclusion means the feature is documented on the vendor's site — not that it's best-in-class. Last verified April 26, 2026.
Model Monitoring
Production monitoring for performance, drift, data quality, and fairness regressions.
Bias & Fairness Testing
Automated statistical testing for disparate impact across protected attributes, with audit-ready reports.
Explainability
SHAP, LIME, counterfactual, and feature-importance explanations for model decisions.
Drift Detection
Automated detection of distribution shift, feature drift, prediction drift, and performance degradation in deployed ML/AI models.
Hallucination Detection
Automated scoring of LLM outputs for factual accuracy and groundedness, typically via retrieval-backed verification or reference comparison.
LLM Guardrails
Runtime input/output filtering for LLMs — PII redaction, toxicity blocking, prompt injection defense, policy enforcement.
LLM Evaluation
Systematic testing of LLM outputs for correctness, relevance, safety, and consistency using automated scorers, rubrics, or human review.
Agent Tracing
End-to-end visibility into multi-step LLM agent runs: tool calls, intermediate reasoning, token usage, latency, and errors at each step.
Audit Logging
Tamper-evident logging of governance events (approvals, model changes, policy decisions) required by EU AI Act Article 12 and similar regulations.
LLM Observability
Logging, tracing, and metrics for LLM applications in production — latency, cost, quality, and error rates across traces and users.
LLM Red Teaming
Automated adversarial testing of LLMs for jailbreaks, prompt injection, and unsafe outputs.
AI Model Inventory
Centralized registry of all AI/ML models in use across the organization, with ownership, lifecycle stage, and risk classification.
Industries served
Fiddler AI pricing
Contact for pricing
Free tier available; Developer at $0.002 per trace; Enterprise contact sales.
Third-party reviews
Publicly cited ratings from independent review platforms. We don't collect reviews ourselves and we don't weight these in our rankings. Low review counts (≤2) are noted so you can decide how much signal to take from them.
G2
2 reviews · thin sample
Capterra
3 reviews
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Frequently asked
What is Fiddler AI?+
Fiddler AI is a AI governance platform headquartered in Palo Alto, US, founded in 2018. Profile last verified April 26, 2026.
How much does Fiddler AI cost?+
Contact for pricing. Verified April 26, 2026 from Fiddler AI's public materials.
Which AI compliance frameworks does Fiddler AI support?+
Fiddler AI documents support for EU AI Act and HIPAA in its public materials. Coverage strength varies — see the framework chips above.
Who is Fiddler AI for?+
Fiddler AI markets to Financial Services, Healthcare, and Insurance teams and other regulated industries. Match it against your specific framework and integration requirements before committing.
Sources
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