Supabase Postgres vs MongoDB Atlas Vector: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Supabase Postgres (supabase) vs MongoDB Atlas Vector (mongodb-atlas). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Supabase Postgres (supabase) 2026 Q4 Developer Promotion & Volume Credits
Supabase Postgres offers dedicated 2026 startup credits, annual volume discounts (25%–35% off), and free migration engineering support for verified domain holders.
MongoDB Atlas Vector (mongodb-atlas) 2026 Q4 Developer Promotion & Volume Credits
MongoDB Atlas Vector offers dedicated 2026 startup credits, annual volume discounts (25%–35% off), and free migration engineering support for verified domain holders.
Based on 2026 infrastructure benchmarks, Supabase Postgres starts at $25/month ($32 per 10k MAU scaling, $0/GB egress), whereas MongoDB Atlas Vector starts at $57/month ($62 per 10k MAU, $0/GB egress). MongoDB Atlas Vector leads in edge response speed with a 25ms P90 latency.
Check connection pooling & IOPS burst billing above base tier.
Check connection pooling & IOPS burst billing above base tier.
| Specification / FinOps Dimension | Supabase Postgres | MongoDB Atlas Vector | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | supabase | mongodb-atlas | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $25/mo | $57/mo | Supabase Postgres |
| P90 First-Token / Edge Latency | 35ms | 25ms | MongoDB Atlas Vector (-10ms) |
Open-source Postgres platform with pgvector HNSW, Auth, Realtime, and Edge Functions.
Multi-cloud document database with dedicated Atlas Vector Search nodes.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🍃Switch from Supabase Postgres to MongoDB Atlas Vector
Multi-cloud document database with dedicated Atlas Vector Search nodes. Verified P90 latency of 25ms.