RAG evaluation is central to modern AI applications, providing systematic methods to assess retrieval-augmented generation systems, which are expected to power 60% of production AI applications by 2025. The evaluation focuses on two key areas: retrieval quality and generation accuracy, addressing the complexity of ensuring relevant context retrieval and accurate, hallucination-free content generation. Traditional reliance on manual checks has slowed progress, but RAG evaluation tools now offer systematic measurement and continuous improvement by integrating production data and enabling real-time feedback loops. These tools are essential for identifying and rectifying failures within RAG pipelines, thereby enhancing both retrieval and generation components. The landscape of RAG evaluation tools includes various options, each with strengths in production integration, evaluation quality, developer experience, and team collaboration. Braintrust stands out for its continuous improvement focus, connecting production data to evaluation seamlessly, and allowing teams to convert production failures into test cases quickly. Other tools like LangSmith offer deep integration with specific ecosystems like LangChain, while Arize Phoenix and Ragas provide open-source, framework-agnostic options, and DeepEval integrates with CI/CD workflows. The choice of RAG evaluation tool depends on factors such as production integration, metric comprehensiveness, and developer experience, with platforms like Braintrust offering a comprehensive solution for production applications by transforming production failures into valuable evaluation datasets for continuous quality enhancement.