Buying Guide · 20,000,000 Vectors

20M Vectors · Heavy Storage — Lowest TCO

🏆 Best overall: Qdrant Cloud Managed

Internal knowledge bases are storage-heavy enterprise workloads. Footprint with metadata reaches 20–40GB; dedicated/storage-optimized tiers win.

Cheapest Vector Databases for this Scale

#1 Cloudflare Vectorize $6.89/mo Visit →

#2 pgvector on Hetzner VPS (Self-Hosted) $17.89/mo Visit →

#3 Qdrant Cloud Managed $18.62/mo Visit →

#4 Turbopuffer $25.81/mo Visit →

#5 Supabase Vector (pgvector) $48.29/mo Visit →

#6 AWS RDS PostgreSQL (pgvector) $49.20/mo Visit →

#7 DataStax Astra DB Vector $49.35/mo Visit →

#8 Zilliz Cloud (Managed Milvus) $67.33/mo Visit →