Baseten cuts delta weight syncs for frontier models to under 40 seconds

baseten · x · 2026-09-09

Baseten published an engineering article on optimizing delta weight syncs for RL managed rollouts: frontier labs publish new weights, and Baseten picks them up across a global fleet so rollouts keep generating against the latest policy. For large frontier models like GLM-5.3, a new policy goes live in under 40 seconds with only a 6-second request pause. Engineer Stefanopopoulos details how the optimization works.

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