A side-by-side of two vector databases for building AI agents — live GitHub data, languages, and what each is best at.
| pgvector | sqlite-vec | |
|---|---|---|
| GitHub stars | ★ 22k | ★ 7.8k |
| Language | C | C |
| Category | Vector databases | Vector databases |
| Best for | RAG on existing Postgres | vectors inside SQLite |
| Repository | pgvector/pgvector | asg017/sqlite-vec |
pgvector and sqlite-vec are both credible choices. By community traction, pgvector leads (★ 22k). Pick pgvector for RAG on existing Postgres; pick sqlite-vec for vectors inside SQLite.
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