OpenAI has responded to the ongoing Apple OpenAI lawsuit with an open letter that opens with a backhanded compliment: “Apple is one of the greatest companies of all time.” The AI giant then pivots quickly to defend itself against claims that it stole confidential Apple information. The letter, published this week, signals that the legal battle over hardware design secrets and former employee conduct is moving into the court of public opinion. Apple originally filed suit on July 10 in the US District Court for the Northern District of California. The complaint targets OpenAI Foundation, OpenAI Group PBC, io Products, and two former Apple executives now working at OpenAI: Chang Liu and Tang Yew Tan. Apple alleges breach of an intellectual property agreement and misappropriation of trade secrets under the Defend Trade Secrets Act. The company has also filed preservation orders to secure digital evidence.
What Apple Alleged
The lawsuit paints a detailed picture of alleged misconduct. According to the complaint, Tang Yew Tan, OpenAI’s current chief hardware officer, directed job candidates who were still employed at Apple to bring actual hardware parts to interviews for “show and tell” sessions. The document also claims Tan distributed an internal Apple security protocol outlining how employees should leave the company, giving it to new hires before those individuals resigned. Separately, Chang Liu, a former senior systems electrical engineer, is accused of refusing to return an Apple laptop. The complaint states Liu used the device to download confidential technical documents before leaving the company. These specific allegations form the backbone of Apple’s request for a preliminary injunction to stop OpenAI from using the disputed information.
OpenAI’s Public Rebuttal
OpenAI’s response frames Apple’s legal action as a reaction to poor internal communication and factual misunderstandings. The AI company argues that Apple mistakenly contacted the wrong OpenAI lawyer, confusing two individuals with the same surname. OpenAI claims Apple then falsely asserted that a phone call had taken place, only to acknowledge both errors later without initially raising the formal allegations. Apple counters that it sent a warning letter to OpenAI back in February and received no response, which directly challenges OpenAI’s statement that it offered to resolve the dispute before litigation began. OpenAI maintains that Chang Liu was simply responding to requests from former Apple colleagues trying to locate files, reflecting Apple’s own access-management gaps rather than intentional misconduct. The company also states that Tang Yew Tan consistently instructed staff not to seek or use competitor information.
The Apple OpenAI Lawsuit: Core Dispute Over Trade Secrets
The heart of the conflict lies in the overlap between OpenAI’s hardware ambitions and Apple’s design processes. OpenAI now employs more than 400 former Apple staff members, including former Chief Designer Jony Ive. Apple will likely argue that the scope of the case extends beyond a single misrouted email or a confused phone call. Instead, the company will focus on a multi-front effort to accumulate information about Apple’s design methodologies through aggressive recruitment. The correspondence shared by OpenAI does reveal some internal security weaknesses at Apple. Messages indicate that personal iMessage accounts are routinely used to share corporate communications, a practice that undermines device management protocols. At the same time, those same messages contain hints of job opportunities being offered to former colleagues, which supports Apple’s claims of steady employee poaching. One message even suggested offering “fun side projects” to a former coworker. US tech analyst Brian Roemmele summarized the situation sharply on X, writing that OpenAI was “caught with its hand in the hardware cookie jar and then writing a blog post about how the jar was left unlocked.” The legal question remains whether OpenAI exploited Apple’s security lapses or simply responded to them.
What This Means for the Tech Industry
For professionals moving between major tech firms, the lawsuit highlights the growing importance of off-boarding agreements and non-compete clauses. When senior engineers and designers transition to a direct competitor, especially one building physical hardware, the lines between institutional knowledge and proprietary trade secrets become dangerously thin. AI companies expanding into hardware face unique scrutiny. Training large language models on internal design documents raises fresh legal questions about data provenance and intellectual property rights. If OpenAI has incorporated Apple’s historical project decisions into its internal development tools, it will need to prove those models were built on publicly available data rather than confidential internal records. Companies with large workforces pulling talent from rivals should review their onboarding and off-boarding protocols. Clear boundaries around device return, data access, and post-employment communications can prevent costly legal entanglements down the road. This case will likely influence how other major tech companies structure their departure agreements and monitor former employees who join rival hardware divisions.
Where the Case Goes Next
The legal battle will likely play out over months, if not years. Both companies have signaled they are prepared to fight rather than settle. OpenAI has dismissed Apple’s request for a preliminary injunction as unnecessary, arguing it does not possess the disputed trade secrets. Apple has not yet issued a formal response to the open letter. The outcome could set a precedent for how AI firms handle hardware design recruitment. If Apple succeeds in proving systematic misappropriation, it may force OpenAI to scrub certain design influences from its product roadmap. Conversely, if OpenAI wins, it could validate aggressive talent acquisition strategies as a legitimate path to hardware innovation. For now, the courtroom will decide which side holds the stronger evidence. The public relations war, however, has already begun.
Source: Computerworld
Over to you: Do you think OpenAI’s hardware ambitions will force Apple to tighten its departure agreements, or will the two companies eventually settle out of court?
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