Category
AI graph databases: what they are and who makes them
graph-first engines with vector search, enterprise knowledge graphs, multi-model databases with graph, cloud-provider graph services: Neo4j, TigerGraph, Stardog through Azure Cosmos DB.
Types of AI graph databases
Graph-first engines with vector search
Neo4j, TigerGraph, Memgraph and FalkorDB are built around graph storage and queries, and each now lists vector search or GraphRAG. They fit teams whose main question is how records connect, and who add embeddings to find the starting point of a traversal.
Enterprise knowledge graphs
Stardog and GraphDB from Graphwise target organizations that model business meaning across many sources. Stardog lists an inference engine and graph machine learning, while Graphwise describes GraphRAG as a retrieval workflow engine. Expect sales-led pricing and a longer modeling phase.
Multi-model databases with graph
Arango, SurrealDB and Azure Cosmos DB keep documents, graph and in some cases vectors in one service. They suit teams that want one datastore rather than a dedicated graph engine, and they trade graph depth for fewer systems to run.
Cloud-provider graph services
Amazon Neptune belongs to this group, with Azure Cosmos DB also sold through a cloud provider. Billing follows the provider's meters for hours, storage and requests, which suits teams already inside that cloud and complicates cost forecasts for everyone else.
Facts at a glance
| Tool | Publisher | Based in | Access |
|---|---|---|---|
| Neo4j | Neo4j, Inc. | Not stated on the vendor pages checked | Free tier + API |
| TigerGraph | TigerGraph, Inc. | Not stated on the vendor pages checked | Free tier + API |
| Stardog | Stardog | United States | Free tier + API |
| FalkorDB | FalkorDB, Inc. | Not stated on the vendor pages checked | Free tier + API |
| Memgraph | Memgraph Ltd. | Not stated on the vendor pages checked | Free tier + API |
| ArangoDB (now Arango) | Arango | Not stated on the vendor pages checked | Paid + API |
| SurrealDB | SurrealDB | United Kingdom | Free tier + API |
| GraphDB (Graphwise) | Graphwise | Not stated on the vendor pages checked | Paid + API |
| Amazon Neptune | Amazon Web Services, Inc. | United States | Trial + API |
| Azure Cosmos DB | Microsoft | United States | Free tier + API |
