Claude for Foundation Models is a Swift package that integrates Claude as a server-side language model within Apple's Foundation Models framework. It conforms to the LanguageModel protocol, allowing it to utilize the same LanguageModelSession API for functionality such as respond(to:), streaming, guided generation, and tool calling, with requests sent directly to the Claude API without Apple's involvement.

Core AI allows developers to run AI models directly within applications on Apple silicon. It provides tools and frameworks to optimize performance and integrate machine learning capabilities seamlessly.