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TLDR AI agent observability has become a critical infrastructure for production deployments in 2025. The top five platforms each serve distinct needs: * Maxim AI provides comprehensive agent simulation, evaluation, and observability with enterprise-grade features and cross-functional collaboration * Langfuse offers open-source flexibility with self-hosting capabilities and a generous free tier * LangSmith

TLDR Retrieval-Augmented Generation powers an estimated 60% of production AI applications in 2025, from customer support to knowledge bases. However, RAG systems introduce unique evaluation challenges requiring specialized measurement of both retrieval quality and generation accuracy. This guide examines the top 5 RAG evaluation tools: * Maxim AI: Full-stack platform with