graphrag alternatives

microsoft/graphrag (36k stars, +35 this week): A modular graph-based Retrieval-Augmented Generation (RAG) system. Why it matters: relevant for grounding LLMs in your own data.

Below are 3 other RAG / vector repos tracked by OSS Radar that share at least two GitHub topics with graphrag, ordered by how many topics overlap, then by stars gained in the last 7 days. Topic overlap means a similar problem space, not a drop-in replacement, so check each project's README.

1. 1. NirDiamant/RAG_Techniques

   +56/wkest.

   A collection of runnable notebook tutorials covering techniques for building Retrieval-Augmented Generation (RAG) systems. Why it matters: relevant for grounding LLMs in your own data.

   30k stars · Jupyter Notebook · shared topics: gpt, llm, llms, rag

2. 2. HKUDS/LightRAG

   +42/wkest.

   [EMNLP2025] LightRAG: Simple and Fast Retrieval-Augmented Generation. Why it matters: relevant for grounding LLMs in your own data.

   40k stars · Python · shared topics: gpt, graphrag, llm, rag

3. 3. deeplethe/utopia

   +84/wkest.

   World's first open-source enterprise world model. Why it matters: relevant for grounding LLMs in your own data.

   8.3k stars · Rust · shared topics: graphrag, llm, rag

More: all trending RAG / vector repos · compare graphrag with the top 2