pgvector vs MongoDB Atlas Vector Search
Vector Databases pricing comparison · 2026
pgvector pricing ranges from $0–$0/month, while MongoDB Atlas Vector Search ranges from $0–$33.26/per hour. pgvector is typically 100% more affordable, though your actual cost depends on tier and team size.
VS
pgvector and MongoDB Atlas Vector Search are both vector databases competitors. This page compares their list pricing tier by tier so you can see which is cheaper for your workload shape.
Plan-by-Plan Pricing
| Plan | pgvector | MongoDB Atlas Vector Search |
|---|---|---|
| Open Source (Free) | Free /month | Free /month |
| Shared (M2/M5) | — | $9 /month |
| Flex | — | $8 /month |
| Dedicated (M10+) | — | Custom |