Introducing The Baseten Delivery Network Bdn

Introducing the Baseten Delivery Network (BDN) Announcing our Series F . Learn more

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Introducing the Baseten Delivery Network (BDN)

Mar 19, 2026 Go back

We just launched the Baseten Delivery Network (BDN), designed to make cold starts 2-3x faster for large models. BDN solves three root causes of slow cold starts: slow weight pulls from upstream storage, replica stampedes under load, and upstream availability dependencies. On first deployment, BDN mirrors your weights to secure storage. From there, a multi-tier cache (node → cluster → mirrored origin) serves weights with consistent hashing and single-flight semantics: each file fetched once per cluster, not once per pod. Fine-tunes sharing weights with a base model only pull the delta. Check out the launch blog to learn more, or see the docs to get started.

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