Litigation
Apple sued. OpenAI answered
with published chat logs
A trade-secret lawsuit that began with a former iPhone engineer's move to a rival has escalated into a public evidence fight instead of quiet settlement talks. Here's what the chat logs actually show, behind the AI hardware talent war.
It started with two
ex-Apple executives switching sides
On July 10, 2026, Apple sued OpenAI over alleged theft of hardware-related trade secrets. The case centers on two people: former iPhone engineer Chang Liu, and former Apple VP of iPhone and Apple Watch design Tang Tan, now OpenAI's chief hardware officer. Apple claims the scheme was orchestrated "at every level."
OpenAI responded on August 3–4, 2026, by publishing chat logs and emails between Liu and his former Apple colleagues, as reported by Forbes and 9to5Mac. Releasing litigation evidence to the public before it's formally entered in court is an unusual move for a tech industry dispute.
What the timeline in the chat logs shows
Per the logs OpenAI published, Apple employees repeatedly reached out to Liu in the days and weeks after his departure, asking technical questions and for help locating internal files. On March 5 he was added to a group chat with Apple staff, where he pointed them to internal folders and contacts before ending it himself: "Hi, this is highly irregular, please remove me from this thread."
The "you never responded" claim, rebutted
Apple had claimed it tried to raise concerns with OpenAI in February and got no response.
OpenAI's counter is that Apple simply emailed the wrong person after confusing two employees with similar Asian surnames — a procedural mistake, OpenAI argues, that Apple is now recasting as being ignored.
Publishing evidence in the court of public opinion instead of the courtroom —
that choice itself says something about this fight.
Why this matters
This case is more than an ordinary poaching dispute. Tan's title — OpenAI's chief hardware officer — shows that OpenAI is building its own device around ex-Apple hardware talent. For Apple, this is a direct threat: people who understood the core of iPhone development are moving to a competitor's brand-new hardware venture. Whatever the merits of the trade-secret claims, the fact that the fight for AI hardware talent has escalated this far is itself an industry-wide signal.
Talent raids between AI companies aren't new, but both sides publicly releasing evidence to fight in the media is a new twist. Leading with a public narrative campaign instead of confidential courtroom filings could become the template for how similar disputes play out going forward.
Who benefits, and how
Engineers considering a move
Don't casually respond to a former employer's requests for internal information after you've left, and keep a record of any such exchanges — that's the practical lesson this case surfaces.
PMs and executives
Tracking how this case unfolds is worthwhile for reading Apple's AI hardware strategy against OpenAI's device ambitions.
Published evidence isn't the whole story
It's worth remembering that the chat logs OpenAI released are a selectively curated rebuttal favoring its own case. Neither the full scope of the lawsuit nor Apple's claims about "several other former employees" allegedly taking information can be judged from these logs alone. Effective as a public-opinion play, this is separate from a legal outcome. Until discovery proceeds and both sides' claims are tested, it's premature to call which account is closer to the truth.
What to watch next
Discovery proceedings
Watch whether the case moves into formal discovery, where both sides' claims get tested in court. Publishing logs was just the opening skirmish.
Whether Apple adds more evidence
Watch for whether Apple presents concrete evidence for its claim about "several other former employees."
Similar disputes elsewhere
As competition for AI hardware talent intensifies, watch whether comparable lawsuits emerge between other companies.