OpenAI Cookbook: Evaluating RAG systems

OpenAI has released a comprehensive guide called the OpenAI Cookbook, which is designed to help users evaluate Retrieval-Augmented Generation (RAG) systems using LlamaIndex. The cookbook is divided into three main sections: the first provides a detailed overview of RAG systems, including the stages involved in their construction; the second focuses on building a RAG system with LlamaIndex, using Paul Graham's essay as a case study and applying the VectorStoreIndex; and the third section emphasizes evaluating the performance of RAG systems in retrieval and response generation using a unique synthetic dataset generation method. The cookbook aims to be an essential resource for enhancing RAG systems utilizing LlamaIndex and invites the community to deepen their understanding and optimize their RAG implementations.