When iPhone engineer Chang Liu quit for a job at OpenAI’s nascent hardware division, Apple Inc. says he left with more than just years of experience.

Apple has lost significant talent to OpenAI as the frontier lab prepares to unveil its first hardware device.

Apple alleges the misconduct was directed by OpenAi's senior leadership, including a long-time former employee.

In a filing, Apple says former employees who left for OpenAI had access to its systems after leaving.