Letting an LLM Pick the Right RAG Page: The Arbiter Pattern at the End of Retrieval

The article introduces the 'Arbiter Pattern' for Retrieval-Augmented Generation (RAG), where a single LLM call ranks candidate documents with explanations, outputting a typed object for auditability. This approach enhances transparency and defensibility in enterprise document intelligence by letting the LLM select the most relevant page at the end of retrieval.