Use Weaviate if
Teams that value speed and simplicity
Teams that need multimodal search, built-in vectorization modules, and a broader search platform.
Vector Databases
Weaviate vs Pgvector
Pgvector edges out Weaviate for the default recommendation.
Use Pgvector if
Teams with more specialized requirements
Teams already on Postgres that want vector search without adding a separate service.
Head to head
| Tool | Self Hosted | Hybrid Search | Multi Tenancy | Managed Option | Max Vectors Free | Filtering Quality | Cost Predictability | Embedding Integration | Pick |
|---|---|---|---|---|---|---|---|---|---|
| Weaviate | Unlimited | Excellent | Medium | Native | |||||
| Pgvector | Unlimited | Good | High | None | Pick |
Cost at scale
The pricing picture after the free tier
| Tool | Starter | Growth | Enterprise-ish |
|---|---|---|---|
| Weaviate | $0 | $380 | $760 |
| Pgvector | $0 | $69 | $138 |
Pgvector
Pgvector edges out Weaviate for the default recommendation.
Weaviate is still credible when its constraints matter more than the default path.