No. Fine Edge Portrait (MODNet), Fast Portrait (MediaPipe), worker-side mask application and PNG output stay in the current browser. The prebuilt runtime and selected model are downloaded by the browser only when needed.
Fine Edge Portrait (MODNet) is the default and is better suited to checking fine hair and clothing edges, though its first model load can take longer. Fast Portrait (MediaPipe) is intended for a quicker try, and complex edges can look different. Both modes run locally.
It is not designed or marketed for that. The product boundary is a person in the foreground; product shots, transparent objects, difficult foregrounds and multiple people are not guaranteed.
After the current mode makes the portrait mask, its worker keeps it for the session. Switching transparent, white, blue, red or gray does not run that portrait model again.
GlobalCoreHub runs the core AI Portrait Background Remover workflow in the current browser. Tool input is not uploaded to the GlobalCoreHub application server; any local saving described on this page stays in the current browser until its site data is cleared.