Apple is working on a new app called Harbor

Apple is developing a new app called Harbor that turns Mac computers into a private AI inference server, running open-weight models locally on Apple silicon so data never leaves the hardware or reaches the cloud. Harbor automatically detects Thunderbolt 5-capable Macs and pools their unified memory into a single inference resource, letting users run models larger than any single machine can hold or serve more concurrent requests. The app is currently in a private preview under the Claris brand.

Apple is working on a new app called Harbor Harbor turns your Mac into a private AI inference server. Run open-weight models locally on Apple silicon—your data never leaves your hardware, and nothing reaches the cloud. Connect multiple Mac computers over Thunderbolt 5 to pool unified memory, enabling large models and higher concurrency that a single computer can handle alone. Set up in minutes, not hours Harbor automatically detects your devices over Thunderbolt 5 to form a cluster. Plug in, start, and you’re running—no manual configuration, no command line, no infrastructure expertise required. Download and run models directly Browse, download, and load open-weight models from within the app. Harbor handles model management so you can focus on the work, not the setup. Cluster for scale Connect two or more Thunderbolt 5-capable Mac computers and Harbor pools their unified memory into a single inference resource. Run models that exceed any single computer’s capacity, or serve more concurrent requests across your cluster. Harbor is currently in a private preview under the Claris brand.