Gantry

Gantry is a leading AI observability and evaluation platform designed to bridge the gap between production monitoring and model retraining. Unlike traditional monitoring tools that simply alert on performance drops, Gantry emphasizes iterative improvement by providing the infrastructure to identify problematic data clusters and funnel them into fine-tuning pipelines. As of 2026, the technical architecture focuses heavily on Large Language Model (LLM) systems, offering sophisticated tools for RAG (Retrieval-Augmented Generation) triaging and hallucination detection. Gantry’s core value proposition lies in its 'Feedback Loop' capability, which allows developers to ingest human feedback directly into the observability suite to create high-quality evaluation sets. Its position in the 2026 market is defined by its deep integration into the enterprise AI stack, following its acquisition by Mainstay (formerly Adaptive), pivoting towards a comprehensive governance and performance management suite for Fortune 500 AI deployments. The platform provides a unified view of model health, data drift, and semantic performance, making it an essential tool for AI Solutions Architects who require more than just vanity metrics.