Baseten cuts delta weight sync to 15 seconds with a 0.8-second pause
AIBaseten says it rebuilt its delta weight sync path so each GPU's existing weights serve as the parent, removing a full CPU copy of the checkpoint. On GLM-5.3, a sync that took 36 seconds with a 6-second pause now takes 15 seconds with a 0.8-second pause.
AIWhy it matters.
The post explains how keeping weights on the GPU cut delta sync time and pause length, a reusable pattern for RL rollout engineering.
Source details
Baseten Blog · baseten.coPublished · added here
Original title: The fastest delta weight syncs in the world