Zilliz CTO on Notion's Vector Infra: 90% Cost Cuts and the Platform Hiding Under One AI Feature
J_Luan_ · reddit · 2026-09-05
Zilliz CTO James Luan unpacks Notion's two years of vector-search infrastructure: generation-based placement to avoid resharding, 600x onboarding capacity via Spark/Airflow, serverless cutting costs 50%, xxHash-based change detection and a unified Ray pipeline bringing costs down 90% from peak — all revealing how one AI feature becomes a data platform problem.
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