Pyyan / Compare / LanceDB vs pgvector
LanceDB vs pgvector
2 of 5Vector Databases · verified 13 Aug 2026
LanceDBLanceDBcurrentpgvectorPostgreSQLcurrent
| Specification | LanceDB | pgvector |
|---|---|---|
| Summary | Embedded, multimodal, columnar. | Vectors inside the database you already run. |
| Index | IVF-PQ, HNSW | HNSW, IVFFlat |
| Hybrid search | Yes | Yes, with SQL |
| Hosting | Embedded and managed | Self-host or any managed Postgres |
| Licence | Apache 2.0 | PostgreSQL |
| p50 latency | Varies | ~15ms |
| Category | Vector Databases | Vector Databases |
| Official | LanceDB ↗ | PostgreSQL ↗ |
Highlighted rows are where these differ.
LanceDB
- Lance columnar format, versioned like a table
- Runs in-process, no service to operate
Best for multimodal data and local apps.
pgvector
- One database for vectors, rows and joins
- The honest default: reach for something else only when this stops working
Best for almost everyone, until scale says otherwise.