LightRAG

Overview

LightRAG is an open-source RAG framework originating from an EMNLP 2025 paper that focuses on simplicity and speed.[11] It offers utilities for chunking documents, building vector indexes, and querying them with LLMs, exposing a small set of APIs instead of a full-blown orchestration system. Developers who want a minimal, inspectable RAG stack instead of heavy abstractions can plug LightRAG directly into their apps.