Apple Sues OpenAI Over Alleged Hardware Trade Secret Theft

The relationship between Apple and OpenAI has always been an unusual one. Apple integrated OpenAI's technology into Siri as part of its Apple Intelligence suite, putting ChatGPT access directly into hundreds of millions of devices. And now, Apple is suing OpenAI for allegedly stealing its hardware trade secrets. Tech's most awkward partnership just got significantly more complicated.

The lawsuit, filed in the US, centres on allegations that OpenAI misappropriated confidential hardware-related information from Apple. The details of exactly what was taken, and how, are still emerging, but the framing of the complaint as a trade secret case — rather than, say, a patent dispute — suggests Apple believes specific proprietary technical information was improperly accessed and used.

What Trade Secrets Are at Stake

Trade secret cases in the tech industry tend to hinge on the movement of people. When engineers or researchers leave one company and join another, they carry knowledge with them, and companies spend enormous resources trying to draw legal lines around what employees can and cannot take. The Apple-OpenAI situation is particularly interesting because the two companies have had an ongoing commercial relationship, which means there were legitimate channels through which Apple shared technical information with OpenAI teams.

The question a court will have to answer is whether information shared in the context of a commercial partnership was later used in ways that exceeded what Apple consented to, or whether individuals who moved between the organisations carried proprietary knowledge improperly. Both are legally distinct scenarios with different thresholds of proof.

Apple has a long history of pursuing trade secret cases aggressively. The company has sued former employees, sued companies that hired those employees, and spent years in litigation over chip design, display technology, and software architecture. This is not a company that files this kind of lawsuit lightly, or without having done extensive preparation.

The Apple Intelligence Complication

What makes this lawsuit particularly awkward is the existing commercial arrangement. Apple announced at WWDC 2023 that Siri would be able to hand off queries to ChatGPT, and the integration shipped with iOS 18. That deal presumably involved some level of technical collaboration. Engineers from both sides would have worked together on integration work. Some of those individuals may have since moved between the companies.

It is worth noting that Apple has been building out its own on-device AI capabilities rapidly, with a strong emphasis on privacy and keeping computation local. The company has been investing heavily in custom silicon optimised for machine learning inference. If OpenAI has, as Apple alleges, used information about that hardware development in its own work, that goes to the core of what Apple considers its competitive moat.

The Broader Context of AI Litigation

This is landing in a legal landscape that is already crowded with AI-related intellectual property disputes. OpenAI itself is a defendant in multiple lawsuits from publishers, authors, and other rights holders over training data. It is now also a defendant in a lawsuit from one of its most prominent commercial partners.

The lawsuit is also a reminder that the AI industry's rapid consolidation and cross-pollination of talent creates real legal exposure. Companies are hiring aggressively from each other, forming partnerships that involve sensitive technical collaboration, and then finding themselves in competition on adjacent fronts. The legal system has not fully caught up with how quickly these relationships form, evolve, and occasionally combust.

For OpenAI, this is a significant distraction at a moment when the company is trying to close major funding rounds, expand its enterprise business, and manage a genuinely complex corporate restructuring. For Apple, it is an assertion of control over the hardware secrets that underpin everything from the M-series chips to the Neural Engine. Neither side will be eager to let this go quickly.