Apple dropped a federal lawsuit on OpenAI Friday that reads less like a legal filing and more like a burn book. The 41-page complaint, filed in the Northern District of California, accuses the AI company of a systematic campaign to steal Apple’s trade secrets. Coordinated from the top down, all the way to its chief hardware officer.
The suit names three defendants: OpenAI itself, Tang Tan (OpenAI’s chief hardware officer and a 24-year Apple veteran), and Chang Liu (an ex-Apple engineer who joined OpenAI in January). IO Products, the hardware startup OpenAI acquired from Jony Ive for $6.5 billion, is also named.
The core allegation is that OpenAI didn’t just hire a few Apple engineers. It allegedly ran an organized effort to extract confidential hardware information from Apple employees during the recruiting process, then used that stolen knowledge to build its own consumer device.
The Trade Secret Operation
The most explosive detail in the filing involves Tang Tan. According to the complaint, Tan directed Apple employees interviewing at OpenAI to bring “actual parts” from Apple to their interviews: batteries, logic boards, system-in-package components. The filing calls these “show and tell” sessions.
Apple says Tan used the company’s internal project codenames during these interviews to elicit more detailed information. He allegedly circulated an internal Apple offboarding document he had either retained or obtained, teaching new OpenAI hires how to dodge Apple’s exit security checks.
That’s not a grey-area poaching dispute. That’s an instruction manual for walking out the door with someone else’s work.
Then there’s Chang Liu. After eight years at Apple as a senior systems electrical engineer, Liu left for OpenAI in January 2026. He kept his Apple-issued laptop. According to the complaint, Liu used the device to download over 1,000 pages of confidential Apple technical documents, including engineering presentations and proprietary project data.
The filing quotes Liu discovering he could still access Apple’s cloud storage after leaving: “LOL, I found out I can access the [network storage], so funny.” He then allegedly used that access to pull down more documents while employed at OpenAI, sharing Apple’s confidential info with other Apple employees who were interviewing there.
The Partnership That Already Fell Apart
This isn’t the first sign the Apple-OpenAI relationship has soured. The two companies announced a high-profile partnership in 2024, integrating ChatGPT into the iPhone’s operating system. Sam Altman visited Apple’s headquarters for the announcement.
But the relationship started deteriorating after OpenAI bought Jony Ive’s hardware startup IO Products in May 2025. That $6.5 billion deal signaled OpenAI was serious about building consumer devices that would compete directly with the iPhone.
Apple’s next-generation Siri assistant, expected this fall, is now built on Google Gemini instead of OpenAI’s models. That shift, which I covered in June, already looked like a strategic divorce. The lawsuit makes it official, and hostile.
The filing also alleges OpenAI approached Apple’s trusted manufacturing partners and had one fabricator demonstrate a proprietary Apple metal-finishing technique, “misleading the partner to believe they had Apple’s permission to do so.” If true, that crosses from internal talent poaching into supply-chain manipulation.
Why This Lawsuit Matters Now
Timing sharpens everything here. OpenAI is preparing for a historic IPO, and a federal trade-secret lawsuit from the world’s most valuable company is a flashing red risk factor for institutional investors.
It comes barely two months after OpenAI won a jury trial against Elon Musk, who had sued over claims the company abandoned its nonprofit mission. That trial was embarrassing but survivable. This one cuts at the company’s hardware strategy: the product category Altman has called his next big bet.
Apple is asking the court to bar OpenAI from using or disclosing its trade secrets, require the company to return all confidential Apple materials, and preserve evidence. It’s also seeking damages and breach-of-contract remedies against Tan and Liu individually.
More than 400 former Apple employees now work at OpenAI, according to the Axios reporting. Apple’s complaint frames that number not as organic talent migration but as the infrastructure of a coordinated extraction campaign.
Elon Musk Piles On
Elon Musk piled onto the lawsuit the same day it dropped. He quote-tweeted a post calling Altman “Scam Altman” with a simple verdict: “He takes scamming to a whole new level.”
Then he posted the classic Sam Altman Senate hearing meme — the one where Altman is wide-eyed saying “I’m doing this because I love it” — and captioned it: “By ‘this’ he means scamming” with crying-laughing emojis. The post has over 26,000 likes in a matter of hours.
Altman shot back: “homeboy you’re the one sellling public market investors on short-term space datacenters.”
OpenAI’s response so far is a one-line statement: “We have no interest in other companies’ trade secrets. We remain focused on building innovative technology that empowers people everywhere.”
Apple’s filing is more pointed. “This is the tip of the iceberg,” it states. “OpenAI’s nascent hardware business now rests on the shakiest of foundations, rotten to its core by its illegal reliance on misappropriated trade secrets.”
The discovery process will tell us how much of this is provable. But the filing itself already lays out specific names, dates, chat logs, and access records. Apple didn’t file a vibes-based complaint. They filed receipts.
