compare
pgvectorscale vs Qdrant
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | pgvectorscale | Qdrant |
|---|---|---|
| Language | Rust | Rust |
| Licence | PostgreSQL | Apache-2.0 |
| Stars | 3.1k | 35k |
| Latest | 0.9.1 | v1.19.2 |
| Last push | 2026-10-01 | 2026-10-06 |
| Release cadence | about 98 days between releases | about 31 days between releases |
| Active contributors | 2 commit authors on the default branch in the last 90 days | 41+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Pinecone. Alternatives to Pinecone →
PartialpgvectorscaleAdds a disk-based StreamingDiskANN index and label filtering to pgvector inside PostgreSQL.
Full replacementQdrantVector search with payload filtering, quantisation and hybrid search.
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.)
Qdrant
- v1.19.22026-10-05- Don't rewrite full sparse posting list on every upsert, making sparse vector upserts significantly faster
- v1.19.12026-09-04- Speed up and saturate memory bandwidth in quantized scoring with prefetching
- v1.19.02026-08-05- TurboQuant 4-bit as a datatype of primary vector storage. Only store 4-bit quantized vectors and spare disk space on…
- v1.18.32026-07-17- Fix query errors when using shard keys while resharding
- v1.18.22026-06-04- Log slow operations during shard WAL recovery
pgvectorscale
unsigned The latest release, 0.9.1, carries no signature GitHub could verify.
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Qdrant
✓ signed The latest release, v1.19.2, carries a signature GitHub verified.
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