compare
pgvector vs pgvectorscale
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | pgvector | pgvectorscale |
|---|---|---|
| Language | C | Rust |
| Licence | Other | PostgreSQL |
| Stars | 23k | 3.1k |
| Latest | v0.8.7 | 0.9.1 |
| Last push | 2026-10-06 | 2026-10-01 |
| Release cadence | too few releases | about 98 days between releases |
| Active contributors | 4 commit authors on the default branch in the last 90 days | 2 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Pinecone. Alternatives to Pinecone →
PartialpgvectorVector similarity search inside PostgreSQL, next to your relational data.
PartialpgvectorscaleAdds a disk-based StreamingDiskANN index and label filtering to pgvector inside PostgreSQL.
pgvector
This repository publishes tags, not GitHub releases.
pgvectorscale
- 0.9.12026-09-04This release hardens DiskANN against type confusion and malformed vector datums. Previously, the operator-class SQL ref…
- 0.9.02025-11-04Added support for PG18
- 0.8.02025-07-02v0.8.0
- 0.7.12025-04-22Fixes for poor recall with label filters
- 0.7.02025-03-21Support for Filtered DiskANN, as described in the updated README.md! (Blog post to come.)
pgvector
unsigned The latest release, v0.8.7, carries no signature GitHub could verify.
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pgvectorscale
unsigned The latest release, 0.9.1, carries no signature GitHub could verify.
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