Apple Inc. sued OpenAI and two former employees in a California federal court on July 10, 2026 [1], [2].

The lawsuit marks a significant escalation in the competition between the two companies as they race to dominate the emerging AI-hardware market. While the firms have previously collaborated on software integration, this legal battle suggests a deep rift regarding intellectual property and corporate espionage.

Apple filed the complaint in the U.S. District Court for the Western District of California [3]. The company alleges that OpenAI illegally obtained confidential design and manufacturing information related to Apple's own AI-hardware project [4], [5]. According to the filing, the information was acquired through two former Apple employees [1].

Apple said the stolen trade secrets were used to accelerate OpenAI's development of its own consumer-facing AI devices [4], [6]. The lawsuit seeks to address the unauthorized transfer of proprietary data that Apple claims is critical to its competitive advantage in hardware engineering [4].

Reports vary on the current nature of the relationship between the two entities. Some sources indicate the companies had previously partnered to embed ChatGPT into iPhone software [7], while others focus exclusively on the impact of the current litigation [8].

Similarly, the specific goals of OpenAI's hardware ambitions remain a point of contention. Some reports state the stolen data was used specifically for a consumer-hardware business venture [6], whereas other accounts describe the project more broadly as the development of a dedicated AI device [7].

Apple has not specified the exact nature of the design secrets involved, but the lawsuit targets both the AI firm and the specific individuals who transitioned from Apple to OpenAI [1].

Apple filed a lawsuit alleging OpenAI illegally obtained Apple’s confidential design and manufacturing information

This litigation highlights the tension between the software-driven AI boom and the established hardware ecosystem. By targeting former employees, Apple is signaling a zero-tolerance policy toward the migration of talent when it involves proprietary manufacturing secrets. The outcome could set a precedent for how 'trade secrets' are defined in the era of generative AI, where the line between general engineering expertise and company-specific intellectual property is increasingly blurred.