Pyyan / Compare / pgvector vs Milvus
Vector Databases · verified 13 Aug 2026
| Specification | pgvector | Milvus |
|---|---|---|
| Summary | Vectors inside the database you already run. | Built for billions of vectors. |
| Index | HNSW, IVFFlat | HNSW, IVF, DiskANN, GPU |
| Hybrid search | Yes, with SQL | Yes |
| Hosting | Self-host or any managed Postgres | Self-host and managed |
| Licence | PostgreSQL | Apache 2.0 |
| p50 latency | ~15ms | ~10ms |
| Category | Vector Databases | Vector Databases |
| Official | PostgreSQL ↗ | Zilliz ↗ |
Highlighted rows are where these differ.
Best for almost everyone, until scale says otherwise.
Best for very large corpora.