This is also a broader validation moment for the multi-model database space. In a market historically dominated by specialized, single-purpose systems (a separate DB for graphs, another for documents, another for search), it's meaningful that multiple independent projects — SurrealDB, ArcadeDB, and others — are converging on the same thesis: one database, many models. That kind of convergence signals the idea has real legs, not just as an engineering curiosity but as something the market is starting to demand.
If you're evaluating options in this space, worth also looking at ArcadeDB (https://arcadedb.com, Apache 2.0). It covers the same models — graph, document, key/value, time-series, full-text search, vector embeddings — but differs in a few practical ways:
- Query language: ArcadeDB speaks SQL, Cypher (OpenCypher-compliant with TCK testing), Gremlin, GraphQL, and MongoDB QL out of the box, so existing tooling tends to work without migration. The 26.2.1 release also added the Neo4j Bolt wire protocol, so standard Neo4j drivers connect directly.
- TimeSeries model is coming next week already compatible with the time series landscape, highly optimized
- License: Apache 2.0 with an explicit commitment to never change it. SurrealDB 3.0 ships under BSL 1.1, which converts to Apache 2.0 in 2030
- Runtime: Java 21, embeddable as a library or client-server, runs on Linux/macOS/Windows (x86_64 and ARM64).
Not saying one is better for all use cases — both are interesting takes on the multi-model problem. If BSL or SurrealQL lock-in are considerations for your team, ArcadeDB is in the same conversation.
Disclosure: I'm the founder of ArcadeDB and of OrientDB (now part of SAP - one of the DBMS SurrealDB was inspired by)
