Pyyan / Compare / pgvector vs Chroma
pgvector vs Chroma
2 of 5Vector Databases · verified 13 Aug 2026
pgvectorPostgreSQLcurrent
ChromaChromacurrent| Specification | pgvector | Chroma |
|---|---|---|
| Summary | Vectors inside the database you already run. | The one you start with. |
| Index | HNSW, IVFFlat | HNSW |
| Hybrid search | Yes, with SQL | Limited |
| Hosting | Self-host or any managed Postgres | Embedded, self-host, managed |
| Licence | PostgreSQL | Apache 2.0 |
| p50 latency | ~15ms | Varies |
| Category | Vector Databases | Vector Databases |
| Official | PostgreSQL ↗ | Chroma ↗ |
Highlighted rows are where these differ.
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.
Chroma
- Best developer experience in the category
- Most teams outgrow it, which is fine
Best for prototypes and local development.