TL;DR:
• Musk threatens immediate antitrust lawsuit against Apple over Grok app rankings
• ChatGPT holds #1 App Store position while Grok sits at #5 despite user surge
• Apple-OpenAI partnership gives ChatGPT exclusive "Must-Have Apps" placement
• Legal threat comes as DOJ already pursues separate iPhone monopoly case
Elon Musk just escalated his war with Big Tech, threatening immediate legal action against Apple over alleged antitrust violations in App Store rankings. The Tesla CEO claims Apple is systematically blocking AI competitors from reaching top spots while favoring OpenAI's ChatGPT, setting up what could be the most explosive tech antitrust battle of 2025.
Elon Musk just declared war on Apple with his most aggressive legal threat yet. The billionaire announced Monday that his AI company xAI will take "immediate legal action" against the iPhone maker over what he calls "unequivocal antitrust violations" in App Store rankings. His target: Apple's alleged preferential treatment of OpenAI's ChatGPT over competing AI chatbots.
"Apple is behaving in a manner that makes it impossible for any AI company besides OpenAI to reach #1 in the App Store," Musk wrote on X, his social media platform. The timing couldn't be more pointed—Musk's complaint comes just as his Grok AI chatbot reached #5 in the App Store's top free apps, while ChatGPT maintains its stranglehold on the #1 position.
The numbers tell a stark story. CNBC confirmed that ChatGPT not only dominates the top free apps ranking but stands as the sole AI chatbot featured in Apple's coveted "Must-Have Apps" section. Even more provocatively, the App Store prominently displays a download link for OpenAI's newly announced GPT-5 model at the top of its main Apps section—prime real estate that competitors can only dream of accessing.
Apple's partnership with OpenAI, announced last year, integrated ChatGPT directly into iPhone, iPad, and Mac operating systems. At the time, Musk fired a warning shot: "If Apple integrates OpenAI at the OS level, then Apple devices will be banned at my companies. That is an unacceptable security violation." Now he's making good on that threat with legal firepower instead of corporate boycotts.
The stakes extend far beyond app rankings. Musk's xAI recently launched Grok 4, positioning it as a direct competitor to OpenAI's newly unveiled GPT-5. Both companies are racing to dominate the consumer AI market, making Apple's App Store the ultimate battleground for user acquisition. With ChatGPT holding the top spot and exclusive promotional placement, Musk argues the playing field is fundamentally rigged.
"Why do you refuse to put either X or Grok in your 'Must Have' section when X is the #1 news app in the world and Grok is #5 among all apps?" Musk demanded in a follow-up post. "Are you playing politics?" The accusation cuts to the heart of Apple's App Store curation practices, which have faced increasing scrutiny from regulators and competitors alike.
OpenAI CEO Sam Altman fired back with his own pointed response: "This is a remarkable claim given what I have heard alleged that Elon does to manipulate X to benefit himself and his own companies and harm his competitors and people he doesn't like." The exchange highlights the personal animosity between the two AI leaders, stemming from Musk's 2018 departure from OpenAI's board and his ongoing lawsuit alleging the company abandoned its founding mission.
Musk's legal threat lands as Apple already faces mounting antitrust pressure. The Department of Justice sued the company last year over charges of running an iPhone ecosystem monopoly. In June, federal judges denied Apple's emergency application to halt App Store changes that prevent the company from charging commissions on payment links or dictating how those links appear.
The timing suggests Musk sees an opportunity to pile onto Apple's existing legal vulnerabilities. With xAI's head of legal, Robert Keele, recently departing after acknowledging "daylight between our worldviews" with Musk, the company appears to be reshuffling its legal strategy just as this new battle begins. Industry observers are watching whether other AI companies will join Musk's challenge, potentially turning his individual complaint into a broader industry uprising against Apple's App Store practices.
Musk's antitrust threat against Apple represents more than just another billionaire spat—it's a calculated strike at the heart of how Big Tech platforms control market access for emerging AI competitors. With existing DOJ pressure, departing legal leadership at xAI, and the high-stakes AI race intensifying, this lawsuit could reshape how app stores curate and promote competing technologies. The outcome will likely determine whether platform owners can legally favor their preferred partners or must maintain true competitive neutrality in the AI age.
