PyyanThe AI Index

Pyyan / RAG & Knowledge Graphs / Neo4j

Neo4j

The graph database most knowledge graphs are stored in.

currentNeo4j ↗Verified 2026-08-13

Cypher

query language

Specifications

KindDatabase
GraphYes, native
LanguageCypher
LicenceGPL-3.0 / commercial
GitHub stars~14k

Official links

Neo4j official site

What matters

  • Native vector index alongside graph traversal
  • GraphRAG and Graphiti both commonly sit on it

Best for the storage layer under a knowledge graph.

Compare with

All 5 side by side →

Neo4j vs LlamaIndex →Neo4j vs LangChain & LangGraph →Neo4j vs Haystack →Neo4j vs RAGFlow →Neo4j vs GraphRAG →

Also in RAG & Knowledge Graphs

LlamaIndexLangChain & LangGraph · LangChainHaystack · deepsetRAGFlow · InfiniFlowGraphRAG · Microsoft