Why Every RAG Company Is Quietly Building a Graph Layer in 2026

Enterprise RAG is moving beyond pure vector search as vendors add graph layers for harder business questions.

Vector RAG struggles with identity resolution, multi-hop joins, and relationship reasoning in enterprise corpora.

Microsoft, Neo4j, and others are pushing hybrid architectures that combine vectors with structured graph traversal.

The shift points to more accurate, context-aware answers for complex enterprise data than chunk-based semantic search alone.