Fiddler AI

Fiddler AI is a premier enterprise-grade observability platform designed to bridge the gap between AI development and production-scale reliability. By 2026, Fiddler has solidified its position as the 'Trust Layer' for organizations deploying Large Language Models (LLMs) and traditional machine learning models. Its technical architecture centers on a centralized Model Commons, which allows data scientists and MLOps teams to track model performance, explainability, and fairness across fragmented environments. The platform excels in identifying 'silent killers' of AI performance, such as data drift and concept drift, using proprietary algorithmic approaches to attribution. For LLMs, Fiddler provides a robust evaluation framework that monitors for hallucinations, toxicity, and PII leakage in real-time. In the 2026 market, Fiddler differentiates itself through its deep integration with data warehouses like Snowflake and Databricks, offering a seamless workflow from training-time validation to production-time monitoring. Its focus on 'Responsible AI' makes it a critical tool for regulated industries—such as finance, healthcare, and insurance—ensuring compliance with evolving global AI acts and governance standards.