In a combination image released to the public, OpenAI CEO Sam Altman can be seen on April 28, 2026, alongside Elon Musk on April 29, 2026, at a federal courthouse in Oakland, California, during the proceedings of Musk's lawsuit concerning OpenAI's transition to a for-profit model.
On Friday evening, OpenAI revealed that it would be discontinuing developers’ access to its models via Cursor, following the recent acquisition of the AI programming startup by Elon Musk's SpaceX at the beginning of the month.
Michael Truell, CEO of Cursor, shared on the SpaceX-owned platform X late Friday, "OpenAI models currently represent around 5% of our user interactions. We are in talks with the OpenAI team to find a resolution. Cursor was among the initial users of OpenAI; we've collaborated with their team for many years and relied on their platform as a neutral foundation for our operations."
OpenAI justified its decision by expressing concerns, stating, "We cannot ensure that SpaceX will adhere to our terms of service when utilizing our technology, given our past experiences with contract violations from Elon Musk's companies."
The company has set a preliminary date of November 12, 2026, to cease access to its models through Cursor. Additionally, OpenAI announced that it will not supply any future models to Cursor as it terminates their agreement.
Neither Cursor nor OpenAI responded immediately to requests for comment from CNBC.
Financial filings confirm that SpaceX completed its $60 billion acquisition of Cursor on August 14. Prior to going public in June, SpaceX had also acquired Musk's companies X and xAI in February.



