They're not called the AI talent wars for nothing. With Big Tech firms scrambling to attract top talent, executives and artificial intelligence researchers have done a lot of job-hopping this year, and Apple employees were no exception. The company has lost over a dozen employees who worked on its AI projects, from executives to scientists to engineers, and even its AI chief, John Giannandrea, who announced this week he was stepping down from the role. One competing tech company has been the