Thunderbolt 5 RDMA

Claris, a wholly owned Apple subsidiary, is testing Harbor, an app that turns Apple-silicon Macs into local AI inference servers and can link multiple Macs over Thunderbolt 5 to run larger models. The app emphasizes zero-configuration setup, auto-detecting Thunderbolt 5 devices and letting users browse and download open-weight models, backed by Thunderbolt 5 RDMA support shipped in macOS Tahoe 26.2. Harbor remains in early access and is not yet publicly available.