Free Ride on Apple Intelligence: Turn macOS Built-in Model into an OpenAI API
macOS 26 Tahoe ships with a 3B parameter language model that Apple calls the Foundation Model. It normally hides in the system powering Writing Tools, Siri, and other features, but you can actually pull it out, wrap it as an OpenAI-compatible API, and plug it into any tool that supports the OpenAI format. Runs completely locally, no network calls, no cost. Prerequisites You need macOS 26 Tahoe (now at 26.3 stable) and an Apple Silicon Mac. Intel Macs won’t work because Apple Intelligence only supports M-series chips. ...