Apple has filed a lawsuit against OpenAI in federal court in California, alleging that two high-ranking former Apple employees stole trade secrets and violated their employment contracts while moving to OpenAI.

The central figure is Tang Tan, OpenAI's Chief Hardware Officer, who spent 24 years at Apple and most recently led product design for the iPhone and Apple Watch. Apple claims Tan used confidential internal project names when recruiting for OpenAI, asked candidates to bring Apple hardware components to interviews, helped departing Apple staff circumvent the company's security systems, and sought information about unannounced products.

A second defendant, Chang Liu, worked as a senior systems electrical engineer at Apple for eight years before joining OpenAI in 2026. Apple alleges Liu kept his company-issued laptop after leaving, used it to download confidential technical documents about unreleased technologies and engineering specifications, and shared that material with other Apple employees considering a move to OpenAI.

Apple says it sent OpenAI a warning letter in February 2026 that went unanswered before the company proceeded to court. The complaint portrays the behavior as a coordinated pattern — requesting designs and prototypes during interviews, asking about component suppliers — rather than isolated incidents.

One noteworthy allegation involves a proprietary metal finishing process. Apple claims OpenAI used the technique after deceiving a manufacturing partner into thinking Apple had approved it — a claim that, if proven, would ground the dispute in physical hardware engineering rather than software or AI models.

Jony Ive's hardware startup io, which OpenAI acquired for $6.5 billion in May 2025, is named in the suit, though Ive himself is not.

Why the timing matters

OpenAI is reported to be developing its first hardware product, potentially a smartphone built around AI agents — meaning a device that runs tasks directly through AI rather than through separate apps. Analyst Ming-Chi Kuo has characterized this as a structural challenge to how Apple's iOS organizes interaction, not simply a new device type.

This context amplifies the lawsuit beyond a typical Silicon Valley hiring dispute. Hardware companies routinely sue over departing employees and trade secrets — component sourcing, manufacturing partnerships, and design specifications are guarded as strictly as any algorithm. What sets this case apart is the scale of the competition: OpenAI has the capital, infrastructure, and now the hardware talent to mount a direct challenge to the iPhone.

That Apple did not name Jony Ive, despite naming io, deserves attention. The legal theory appears to rest on specific actions by Tan and Liu during and after their Apple employment, rather than a broader claim against io's leadership or OpenAI's hardware strategy overall. This is a tighter argument, and in this author's view, a more defensible one in court than a sweeping challenge to the entire initiative would be.

The dispute unfolds against a deeper shift in how companies view the next computing era. Apple has refined the app-and-touchscreen model for two decades since the original iPhone. A device built around AI agents, if OpenAI actually ships one, would test whether that interaction pattern survives when a model can complete tasks directly. Litigation over trade secrets may not settle such questions, but discovery — the process where both sides exchange evidence — often reveals how far a competitor's hardware program has actually progressed.

For now, the suit sits in its early stage. OpenAI has not responded publicly. What comes next — whether OpenAI seeks dismissal, settles, or defends the claims through discovery — will shape how much of its hardware roadmap becomes visible before any product ships.