OpenAI and its CEO Sam Altman are pushing back against Apple's trade secret theft allegations, contending that the iPhone maker is using litigation to slow a potential competitor and discourage employee departures. The dispute centers on whether former Apple employees Tang Tan and Chang Liu misappropriated confidential information related to hardware design, manufacturing, and supply chain operations as OpenAI expands into consumer devices.

In a court filing on August 31, OpenAI characterized the lawsuit as "a mess of Apple's own making," arguing that Apple failed to demonstrate any confidential information was actually stolen. The company emphasized that California employment law explicitly permits workers to move between rival companies, a principle that should protect OpenAI's hiring practices.

The conflict represents a dramatic reversal from just two years ago, when Apple and OpenAI forged a partnership designed to integrate ChatGPT into Apple's ecosystem and strengthen the tech giant's artificial intelligence capabilities. As competition in the AI industry intensified, however, the relationship deteriorated.

What Triggered Apple's Legal Action Against OpenAI?

Apple sued OpenAI in July, alleging that the AI company systematically hired Apple employees to extract proprietary knowledge. According to Apple's complaint, Tan and Liu both accessed internal Apple files after leaving the company. OpenAI has hired roughly 400 employees from Apple for its hardware initiative, according to court filings from both companies.

In its defense, OpenAI highlighted what it views as Apple's own procedural failures. The company noted that Apple encourages employees to use personal iCloud accounts to access work documents, making it difficult for departing workers to cleanly separate personal and company information. Additionally, OpenAI argued that Apple's practice of immediately escorting departing employees from its premises doesn't give them adequate time to return company devices, transfer internal files, or hand over responsibilities.

How Are the Accused Employees Responding?

Both former Apple employees have offered explanations for their post-departure access to Apple systems. Chang Liu stated that any access to Apple documents after his departure was done to help former Apple colleagues locate files or answer questions related to their work. He noted that Apple employees repeatedly contacted him for assistance after he left the company.

Tang Tan, who spent 24 years at Apple, said he returned Apple prototypes before departing and only retained non-confidential materials, including an employee departure checklist that was not classified as confidential. OpenAI used these explanations to argue that the employees acted appropriately under California law.

Key Arguments in OpenAI's Defense Strategy

• California Employment Law: OpenAI emphasized that California law explicitly allows employees to freely move between competing companies, and workers cannot be restricted from using general knowledge and skills gained at previous employers.
• Apple's Internal Procedures: OpenAI highlighted that Apple's own policies, including encouraging personal iCloud use for work and immediately escorting departing employees out, created the conditions for potential confusion about what constitutes company property.
• Legitimate Business Reasons: OpenAI argued that hiring talented engineers from competitors is a standard industry practice and that the company's hardware initiative represents legitimate business competition, not corporate espionage.
• Lack of Evidence: OpenAI contended that Apple failed to provide concrete evidence that any confidential information was actually stolen or used by OpenAI in developing its products.

OpenAI concluded its filing with a pointed statement about employee mobility: "Employees can leave a company like Apple that has struggled to adopt AI and move to an exciting startup that builds innovative products. 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".

What's Next for Sam Altman and OpenAI?

The lawsuit remains pending in US District Court in San Jose, California. The outcome could have significant implications for how tech companies compete for talent in the AI industry, where skilled engineers are in high demand and frequently move between organizations. The case also underscores the broader tension between protecting legitimate trade secrets and allowing workers the freedom to pursue new opportunities.

Meanwhile, Altman is preparing for a higher-profile appearance on the global stage. The OpenAI CEO is scheduled to speak at the G20 Innovation Forum in Chapel Hill, North Carolina, on September 1 and 2, where he will discuss complicated questions around AI innovation, energy use, and regulation alongside other tech leaders including SpaceX CEO Elon Musk and Nvidia CEO Jensen Huang.