Weaviate vs MongoDB Atlas Vector Search
Vector Databases pricing comparison · 2026
Weaviate pricing ranges from $0–$400/month, while MongoDB Atlas Vector Search ranges from $0–$33.26/per hour. MongoDB Atlas Vector Search is typically 99% more affordable, though your actual cost depends on tier and team size.
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Weaviate 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 | Weaviate | MongoDB Atlas Vector Search |
|---|---|---|
| Free Trial | Free /month | Free /month |
| Flex | $45 /month | $9 /month |
| Premium | $400 /month | $8 /month |
| Dedicated (M10+) | — | Custom |
Cost at Scale
Total cost of ownership — licenses, implementation, and hidden costs included.
Weaviate
5 scenarios$45/month
Starter: Flex Plan Minimum
$400/month
Growing Team: Premium Plan
$0/month
Prototype / Evaluation (Free Trial)
MongoDB Atlas Vector Search
5 scenarios$0/month
Hobby / Development Project (M0 Free)
$8/month
Small Team (Flex Plan)
starting
$9/month
Small Team (Shared Cluster)