UltimateRAG: A 5-Stage Evolution Roadmap from Demo to Enterprise-Grade RAG

UltimateRAG is an open-source project that breaks down RAG technology into 5 clear stages, evolving from a basic demo to an enterprise-grade and research-level system. Through five carefully designed stages, the project addresses core challenges in RAG applications: Stage 1 implements a minimum viable closed loop; Stage 2 resolves performance instability; Stage 3 handles complex problem decomposition; Stage 4 approaches research and complex business scenarios; Stage 5 achieves optimization for long-term system operation. This project not only provides code implementation but also emphasizes explaining design concepts, making it suitable for developers with engineering backgrounds who want to deeply understand RAG evolution logic. Open for contributions through GitHub, UltimateRAG offers a practical learning and engineering roadmap for developers in the AI field.