GPT Apple sues OpenAI over trade secrets as the AI lab builds toward hardware
Apple sued OpenAI in federal court on July 10, alleging former Apple staff now at OpenAI took confidential hardware secrets. The complaint reads as much as a fight over OpenAI's move into devices as over the specific files.
Apple filed suit against OpenAI in the U.S. District Court for the Northern District of California on July 10, alleging that former Apple employees now working at OpenAI misappropriated confidential information tied to unreleased hardware. The complaint names two people and frames them as part of a wider pattern, but the subtext is larger than any one file: it lands as OpenAI pushes into physical devices, a market Apple has defended for two decades.
What the complaint alleges
Apple’s filing centers on two former employees. Tang Tan, a longtime Apple product design leader who worked on iPhone and Apple Watch, left in 2024 for io, the hardware startup OpenAI later acquired. Chang Liu, a senior electrical engineer, moved from Apple to OpenAI in early 2026. Apple alleges Tan used internal project code names and asked job candidates to bring Apple hardware components to interviews, and that Liu exploited a security gap to download more than 1,000 pages of engineering files after giving notice. Both allegations are unproven, and OpenAI has not answered them in court.
The trade secrets Apple lists are specific to building physical products: unannounced technologies, a metal finishing technique, component specifications, and vendor selection processes. Apple is not leading with a headline damages number. It wants the court to bar OpenAI from using or disclosing the material, order the return of confidential files, and preserve evidence. In its complaint Apple calls the named conduct “the tip of the iceberg” and notes that more than 400 former Apple employees now work at OpenAI.
OpenAI’s response was brief. “We have no interest in other companies’ trade secrets,” the company said, adding that it “remains focused on building innovative technology.” Apple’s public statement stuck to principle, saying it takes protecting its intellectual property “very seriously.”
Where this lands in the market
Read narrowly, this is a talent-and-secrets dispute of the kind that surfaces whenever engineers move between rivals. Read in context, it is about OpenAI becoming a hardware company. OpenAI paid a reported $6.5 billion for Jony Ive’s io last year and has been reported to be working on an AI-first device, possibly a phone and a smart speaker, aimed at a post-app interface. A company that ships a consumer device competing with iPhone is a different kind of threat to Apple than a chatbot, and the suit reads as Apple drawing a line around the knowledge that walks out with departing staff.
For developers building on OpenAI, the direct impact is small in the near term. Model access, APIs, and pricing are not part of this case, and litigation like this tends to grind for months or years without touching the product. The signal worth tracking is strategic, not operational: the case is one more data point that OpenAI intends to be a platform you hold, not just an API you call, and that ambition is now drawing legal fire from the incumbent that owns the device layer.
It also sharpens a talent question. The flow of Apple hardware veterans into OpenAI is exactly what you would expect from a lab staffing up to build devices, and it is exactly what makes Apple nervous. Lawsuits rarely stop that movement, but they raise the cost and the caution around it, which can slow how freely a fast-moving lab hires from a rival.
What’s worth watching
- Whether OpenAI’s device plans surface in discovery. A trade-secret case turns on what was allegedly taken and used. Any detail that emerges about OpenAI’s hardware roadmap would be the most consequential byproduct of the suit, well beyond the legal question.
- Whether Apple seeks an injunction with teeth. The relief requested so far is preservation and return, not a halt to OpenAI’s hardware work. If Apple escalates to an injunction that touches the device program, the stakes change.
- The chilling effect on cross-company hiring. The most durable outcome may not be a verdict but a shift in how aggressively AI labs recruit from hardware incumbents, and how carefully those incumbents police departures.
The through-line is that OpenAI’s next act is hardware, and hardware is fought over differently than software. A model war plays out in benchmarks and price cuts. A device war plays out in supply chains, design secrets, and courtrooms, and this filing is the first sign OpenAI is now in that second fight. Stackmaven’s follow-up coverage will revisit the case on or around October 9.