GraphRAG
ActiveDescription
A modular graph-based Retrieval-Augmented Generation system by Microsoft that uses LLMs to extract structured knowledge graphs from text, enabling global and local community summarization queries.
Key Features
- Knowledge Graph Construction — Auto-extract entities and relations from unstructured text using LLMs
- Community Detection & Summarization — Leiden algorithm-based graph community detection with hierarchical summaries
- Global Queries — Answer cross-document reasoning questions via community summaries
- Local Queries — Graph-structure retrieval for entity-specific questions with related context
- Tunable Prompts — Prompt tuning guide for optimizing extraction and query quality on custom datasets
- Modular Pipeline — Separated indexing, community detection, and query engines for independent scaling
Use Cases
💡 Private Document Q&A — Global reasoning across enterprise contracts, reports, and emails
💡 Research Report Analysis — Extract relationship networks from academic papers, answer cross-literature questions
💡 Legal Compliance Review — Build knowledge graphs from regulations for cross-reference compliance queries
💡 Medical Literature Mining — Extract disease-drug-gene relations from clinical research for drug discovery
💡 Competitive Intelligence — Extract company relationship networks from news and reports
Strengths & Limitations
✅ Strengths
- • Actively maintained, recent updates
- • High community interest (35.8k stars)
- • Permissive open-source license (MIT)
- • Established track record (2 years in production)
Categories
Quick Start
pip install graphrag
graphrag init --root ./my-project
graphrag index --root ./my-project
graphrag query --root ./my-project --method global --query "What are the main themes?"