The trial pits two of tech's most famous personalities against each other and could lead to seismic changes for the maker of ChatGPT.

According to sources familiar with the matter, OpenAI executives believe Apple has failed to uphold its end of the strategic bargain.

OpenAI is exploring legal action against Apple, claiming the iPhone maker failed to properly integrate ChatGPT into Siri and Apple Intelligence after their 2024 partnership. OpenAI had projected billions in annual subscription revenue from the deal—none of which materialised.

Musk sued OpenAI, Altman and the company's president, Greg Brockman, in 2024, alleging they went back on their vow to keep the artificial intelligence company a nonprofit and follow its charitable mission. He argued that the roughly $38 million he donated to OpenAI was used for unauthorized commercial purposes.

Sam Altman faced pointed questions about his financial ties to the Everett, Wash., fusion startup during testimony in the Musk v. Altman trial, as Congress separately raised conflict-of-interest concerns.