This guide breaks down what’s new, why it matters, and how to get the most out of Opus. For context: R2R (RAG to Riches) is an open-source framework that provides a RESTful API for RAG. Unlike basic LangChain scripts, R2R offers built-in ingestion, hybrid search, observable pipelines, and multi-user management.

The R2R framework has quickly become a favorite for developers building production-ready retrieval-augmented generation (RAG) pipelines. With the Opus Release , R2R Play has moved from a promising tool to an enterprise-grade orchestrator.