Elon Musk’s X Corp and SpaceXAI have withdrawn their antitrust lawsuit against Apple, concluding a legal challenge that alleged Apple conspired with OpenAI to favor its ChatGPT over competing AI chatbots. The companies filed a motion to dismiss their claims in a court filing on Monday, but did not provide a reason for this decision or indicate whether a settlement was reached.
The lawsuit, initiated in August 2025 in the United States federal court in Fort Worth, Texas, accused Apple and OpenAI of violating US antitrust laws by making ChatGPT the sole generative AI chatbot integrated into Apple’s iPhone operating system. X and SpaceXAI, which develops the Grok chatbot, claimed that this arrangement granted ChatGPT access to billions of user prompts via features such as Siri, Apple’s Writing Tools, and the iPhone camera, thereby limiting access for competing AI companies and hindering their growth.
The companies also alleged that Apple disadvantaged other AI chatbots through its App Store by delaying app reviews and manipulating app rankings. In their complaint, X and SpaceXAI asserted that Apple and OpenAI had effectively combined their positions in the smartphone and AI markets to reinforce each other's dominance, violating the Sherman Antitrust Act and Texas antitrust law.
Apple and OpenAI had previously sought to have the lawsuit dismissed, but US District Judge Mark Pittman allowed the case to proceed in November. OpenAI accused Musk of conducting a “campaign of lawfare” against the company. Musk has initiated several legal actions against OpenAI, including a lawsuit claiming that OpenAI strayed from its original mission to develop AI for the benefit of humanity. OpenAI successfully defended against that lawsuit in May.
X and SpaceXAI stated on Monday that they would continue pursuing their claims against OpenAI, which remains a defendant in the case. OpenAI’s ChatGPT became the fastest-growing consumer application in history following its launch in late 2022.