OpenAI Tells Court Apple's Own Offboarding Failures Fuel Trade Secrets Dispute

OpenAI has drawn a hard line in its escalating legal fight with Apple, arguing the iPhone maker has no one to blame but itself for a trade secrets dispute that has become one of the more consequential corporate legal clashes in the AI hardware race.

In a filing late Monday in U.S. District Court in San Jose, OpenAI called the case "a mess of Apple's own making," denying that any confidential information was stolen by former Apple employees now working at the ChatGPT maker. The rebuttal is OpenAI's first substantive response to Apple's July lawsuit, which accused OpenAI and two former Apple employees, Tang Tan and Chang Liu, of misappropriating trade secrets tied to hardware design, manufacturing and supply-chain operations.

The stakes are high. OpenAI is pushing hard into consumer devices, an area where Apple has dominated for nearly two decades. Apple's lawsuit landed as a direct challenge to that ambition, and OpenAI's response frames the litigation as less about stolen secrets and more about competitive anxiety.

The Core Dispute Over Access and Offboarding

Apple's original complaint centered on a specific claim: that Tan and Liu accessed internal Apple files after leaving the company, and that OpenAI's aggressive hiring was part of a deliberate strategy to extract competitive intelligence. Apple has watched roughly 400 of its employees join OpenAI's hardware initiative, according to court filings from both sides, a figure that underscores how directly the two companies are now competing for talent.

OpenAI's counter is procedural rather than personal. The company argues Apple's own IT practices, not employee misconduct, created the conditions for the alleged breach. Specifically, OpenAI says Apple encourages staff to use personal iCloud accounts to access work documents, a policy that blurs the line between personal and company files long before anyone resigns. Add to that Apple's practice of escorting departing employees off premises immediately, OpenAI argues, and workers are left with no real opportunity to return devices, transfer files or hand off responsibilities in an orderly way.

Individual accounts filed alongside OpenAI's response add texture to that defense. Liu said any post-departure access to Apple documents came at the request of former colleagues who reached out for help locating files or answering lingering questions, not from any effort to retain proprietary material. Tan, a 24-year Apple veteran, said he returned company prototypes before leaving and kept only non-confidential materials, including an employee departure checklist he characterizes as unremarkable.

California's legal framework works in OpenAI's favor here. The state broadly protects employee mobility, and OpenAI leaned on that principle directly, writing that workers "can leave a company like Apple that has struggled to adopt AI and move to an exciting startup that builds innovative products." The filing continues: "Apple may not like those choices. But it cannot claim those choices are unlawful, and it cannot use its own sloppy procedures to blame others for its own mess."

That framing does two things at once. It positions OpenAI as the defender of a well-established legal norm around labor mobility, and it turns Apple's litigation strategy into the story, suggesting the lawsuit is less about protecting trade secrets and more about slowing a rising competitor and discouraging further departures.

The backdrop makes the dispute sting more. Apple and OpenAI were partners as recently as two years ago, when the two companies struck a deal to integrate ChatGPT into Apple's ecosystem, giving Apple a faster path into generative AI features and giving OpenAI broader distribution. That alliance has curdled quickly as competitive pressure in AI intensified and OpenAI's ambitions expanded beyond software into hardware, an area squarely within Apple's core business.

For investors and industry watchers, the dispute is a useful proxy for a broader tension building across the AI sector: fast-growing AI labs are pulling talent from established hardware and software incumbents at a pace that traditional employment and IP protections were not built to handle. Apple's complaint that a former 24-year employee retained even non-confidential departure paperwork illustrates how granular these disputes can get when a legacy tech giant feels threatened by a well-funded, fast-moving rival.

This is not an isolated skirmish. A separate Reuters report from August 31 detailed Apple's allegation that an OpenAI employee accessed circuit design plans after joining the startup, a claim that suggests Apple's litigation strategy extends beyond the two named defendants and into broader concerns about technical leakage as its former staff migrate to a direct competitor in devices.

The Bottom Line

Trade secrets litigation of this kind rarely resolves quickly, and this case is unlikely to be an exception. The legal question at the center, whether Apple's own internal controls undermine its claims of misappropriation, will likely shape how much discovery, expert testimony and courtroom time both sides commit before any resolution. For now, OpenAI has staked out an aggressive defense that puts Apple's corporate practices under scrutiny rather than simply denying wrongdoing.

The reputational and competitive stakes extend well past the courtroom. Apple is trying to protect its core hardware franchise from a rival with deep capital and significant talent inflows, while OpenAI is trying to establish that it can build consumer devices without being tethered to litigation risk every time it hires from a competitor. Investors tracking OpenAI's device ambitions, and Apple's response to AI-driven competitive threats, should watch how this case develops as an early signal of how courts will treat talent mobility in an industry where the line between employee and asset is increasingly contested.