Has Apple made their own model for swift assist?

Apple has not created their own model specifically for Swift Assist. Instead, they have integrated support for advanced coding models like ChatGPT within Xcode. Developers can choose a model of their preference, and Apple has worked with OpenAI to integrate their optimized coding models directly into Xcode. This allows developers to interact with code using natural language, enhancing their coding experience with tools like Swift Assist. You can find more details in the Platforms State of the Union session.