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Neon vs Weaviate

Our take

Pick Neon if builders who will stay on Free $0 (100 CU-hours/project, 1 GB, 10 branches), then move to Launch (pay-as-you-go, $0.106/CU-hour, $0.35/GB-month) when writes or idle-always-on matter. Pick Weaviate if teams who will stay on Cloud Free $0 (100k objects, 1 GB RAM, 10 GB disk) or self-host, then buy Flex at $45/month when they need HA, 1,000 collections, and pay-as-you-go dimensions.

Neon

Neon

serverless Postgres nest

Weaviate

Weaviate

open-source vector database

Best for

Neon Postgres metered in CU-hours and GB

Weaviate Vectors you can self-host or rent from $45 Flex

Free plan

Neon $0 · 100 projects. 10 branches/project. 100 CU-hours/project. Autoscaling up to 2 CU. Scale-to-zero after 5 min (cannot disable). 1 GB/project Postgres, 20 GB account. 5 GB egress/project. 6-hour history. 1 snapshot. Auth 60k MAU. 5 GB object storage. Functions: 10 active / 400 waiting Capacity-Hours, 1M invocations. Hitting CU or egress suspends compute until next cycle; storage cap blocks writes

Weaviate $0 · forever. 1 cluster / user. 100,000 objects. 1 GB memory. 10 GB disk. 1 collection, up to 3 tenants. Embeddings 2,000 req/day. Query Agent 1,000 req/month. Best-effort SLA

Lowest paid

Neon Launch $0.106

Weaviate Premium Shared / Dedicated $0.003875/mo

Next step up

Neon Scale $0.222

Weaviate Embeddings (list) $0.025

Coding agent

Neon Branching

Weaviate Query Agent

Runs where

Neon

Weaviate Local; you host it

Watch out

Neon Free suspends when CU-hours or 5 GB egress are gone

Weaviate Free is 100k objects and one collection

Last checked

Neon 2026-10-22 · neon.com/pricing

Weaviate 2026-10-22 · weaviate.io/pricing

Which one, then?

Pick Neon if

builders who will stay on Free $0 (100 CU-hours/project, 1 GB, 10 branches), then move to Launch (pay-as-you-go, $0.106/CU-hour, $0.35/GB-month) when writes or idle-always-on matter.

Read the Neon page

Pick Weaviate if

teams who will stay on Cloud Free $0 (100k objects, 1 GB RAM, 10 GB disk) or self-host, then buy Flex at $45/month when they need HA, 1,000 collections, and pay-as-you-go dimensions.

Read the Weaviate page

Other comparisons