A side-by-side of two vector databases for building AI agents — live GitHub data, languages, and what each is best at.
Short answer: Weaviate leads LanceDB vs Weaviate by community traction (★ 17k vs ★ 11k). Pick LanceDB for embedded vector search; pick Weaviate for hybrid search.
✓ Live data verified
| LanceDB | Weaviate | |
|---|---|---|
| GitHub stars | ★ 11k | ★ 17k |
| Language | Rust | Go |
| Category | Vector databases | Vector databases |
| Best for | embedded vector search | hybrid search |
| Repository | lancedb/lancedb | weaviate/weaviate |
LanceDB and Weaviate are both credible choices. By community traction, Weaviate leads (★ 17k). Pick LanceDB for embedded vector search; pick Weaviate for hybrid search.
Both are credible vector databases. By community traction Weaviate leads (★ 17k). Pick LanceDB for embedded vector search; pick Weaviate for hybrid search.
LanceDB is Embedded, in-process vector database on the columnar Lance format — versioned, updatable, larger-than-RAM retrieval with no server.. Weaviate is Open-source vector database with hybrid search and built-in modules for vectorization and RAG..
Weaviate has more — ★ 17k vs ★ 11k (live counts).
Often yes — many teams combine vector databases. Check each tool's docs for interop; they solve overlapping but not identical problems.
LanceDB is primarily Rust; Weaviate is primarily Go.
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