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Cloudflare Vectorize¶
Overview¶
Vectorize is Cloudflare's managed vector database on the Workers developer platform — the vector-index substrate for semantic / ANN similarity queries.
Role in the stack¶
In the 2026-04-16 AI Search launch, Vectorize is named as the vector-index substrate bundled into every new AI Search instance:
"Each instance gets its own built-in storage and vector index — powered by R2 and Vectorize."
Pre-AI-Search, Vectorize was a customer-visible primitive that developers provisioned + managed directly. Post-2026-04-16, for the AI-Search workflow, Vectorize is an implementation detail — managed inside the AI Search instance alongside R2 storage.
Vectorize remains available as a standalone primitive for workflows that are pure vector-search without the hybrid-search + crawl + agent-memory-as-a-service framing AI Search provides.
Seen in¶
- sources/2026-04-16-cloudflare-ai-search-the-search-primitive-for-your-agents — named as the vector-index substrate inside every AI Search instance.
Related¶
- systems/cloudflare-ai-search — the managed-search product that bundles Vectorize.
- systems/cloudflare-r2 — the paired storage substrate.
- systems/cloudflare-workers — the host runtime.
- concepts/vector-similarity-search / concepts/vector-embedding — the primitives Vectorize implements.
- companies/cloudflare — parent org.