The partnership that once put ChatGPT into every iPhone is now a lawsuit. On July 10, 2026, Apple filed suit in the U.S. District Court for the Northern District of California against OpenAI, its Chief Hardware Officer Tang Tan, engineer Chang Liu, and the hardware startup io Products, alleging systematic trade secret theft. It is the first time in Apple’s nearly 50-year history that the company has sued a close partner. In a statement regarding the filing, Apple noted: “Recently, significant evidence has emerged suggesting individuals employed by OpenAI wrongfully took Apple’s secret and confidential information regarding our unreleased technologies, processes, and products.” The company further asserted in its filing: “This much is clear, however: at every level, from members of its Technical Staff to its Chief Hardware Officer, and in coordination with business partners, OpenAI has been stealing Apple’s trade secrets and confidential information.”
The complaint reads like a map of how a corporate partnership unravels at the edges. Apple alleges that OpenAI actively coached departing employees on how to leave without detection while extracting confidential information. More than 400 former Apple employees now work at OpenAI, according to the filing. Specific allegations include Tan directing job candidates still at Apple to bring “actual parts” from Apple hardware to OpenAI interviews for “show and tell” sessions, and Liu allegedly stealing an Apple laptop after joining OpenAI and using it to access Apple’s network through a previously unknown bug.
Legal experts are already parsing the implications of these claims. Mark Lemley of Stanford Law School notes the distinction between aggressive recruiting and illegal conduct: “Some of what Apple alleges — such as OpenAI’s hiring of hundreds of Apple employees — is not illegal in California. However, if Apple’s claims that the employees took confidential documents with them, and that OpenAI is using those documents, are true, that is a problem for OpenAI.”
The most pointed allegation involves supply chain manipulation. Apple claims OpenAI used an Apple-invented proprietary metal finishing technique with one of Apple’s trusted manufacturing partners, misleading that partner into believing OpenAI had Apple’s permission. OpenAI has denied all allegations. Drew Pusateri, Director of Strategic Communications, stated the company has “no interest in other companies’ trade secrets” and remains “focused on building innovative technology that empowers people everywhere.” Beyond these specific accusations, the two-year-old Apple-OpenAI partnership, centered on ChatGPT integration into iOS and Siri, has been described as functionally broken, with both sides openly preparing or pursuing litigation. Apple cited concerns about OpenAI’s user privacy protections, its hardware ambitions, and its aggressive recruiting of Apple engineers. OpenAI, for its part, had been preparing its own breach-of-contract action against Apple, citing underutilization of its AI technology, poor feature discoverability, and missed integration and subscriber targets.
This legal friction coincides with a fundamental pivot in Apple’s AI strategy. At WWDC 2026 in June, Apple unveiled “Siri AI,” a comprehensive overhaul built on Google Gemini that rolls out this fall across iOS 27, iPadOS 27, macOS 27, watchOS 27, and visionOS 27. The revamped assistant features personal context awareness, cross-app actions, on-screen content analysis, and web information retrieval. By integrating Google’s models, Apple has effectively moved its primary AI partnership from OpenAI to Google — handing the search giant a distribution channel across the entire Apple ecosystem.
For OpenAI, the loss compounds an already expensive bet on hardware. In May 2025, OpenAI acquired io Products — co-founded by former Apple design chief Jony Ive, Tang Tan, Scott Cannon, and Evans Hankey — for $6.5 billion in an all-stock deal. The ~55-person team’s purpose: build a new family of AI-integrated consumer hardware. OpenAI’s first device is expected to be revealed in the second half of 2026, with shipments beginning no earlier than February 2027. Camilla Hrdy of Rutgers Law School suggests the hardware focus adds a layer of complexity to the litigation: “The case could become complex because most previous cases around AI and trade secrets have involved software rather than hardware.”
Apple is seeking a jury trial, an injunction requiring OpenAI to cease the alleged practices, destruction of proprietary materials, and a redesign of upcoming products to exclude any Apple technology. The remedies, if granted, could reshape OpenAI’s hardware timeline.
What was once a distribution partnership is now a courtroom contest over who owns the boundary between collaboration and extraction — and who gets to build the next generation of consumer AI devices.