Elon Musk Reacts To OpenAI-Cursor Split
Elon Musk has hit back at OpenAI after the artificial intelligence company decided to end its partnership with Cursor, an AI-powered coding tool recently acquired by Musk’s SpaceX. The decision ends a nearly four-year relationship and adds another chapter to the long-running dispute between Musk and OpenAI CEO Sam Altman.
Musk Attacks Sam Altman And OpenAI
Musk reacted to the decision in a post on X, dismissing OpenAI’s move and sharply criticising Sam Altman and OpenAI President Greg Brockman. He accused the two executives of being untrustworthy and repeated his allegation that they had moved OpenAI away from its original nonprofit mission.
Why OpenAI Is Ending The Cursor Deal
OpenAI said it has notified SpaceX that it intends to wind down its agreement to provide OpenAI models to Cursor. The proposed shutoff date is November 12, 2026, with OpenAI saying it is providing the maximum notice allowed under its contract so developers have more time to transition.
OpenAI Raises Contract Concerns
The company said its agreement with Cursor was designed to ensure that its models were used safely and in compliance with OpenAI’s terms. According to OpenAI, concerns increased after Cursor came under SpaceX’s ownership and because of the previous record of Musk-owned companies.
SpaceX Acquisition Triggers Review
Cursor was founded in 2022 and was acquired by SpaceX earlier this year. OpenAI said the change in ownership gave it grounds to review the existing arrangement with the coding platform.
OpenAI also pointed to what it described as past compliance concerns involving Musk’s companies. The company said it could not be confident that SpaceX would continue to operate within its contractual terms.
OpenAI Cites Musk Companies’ History
OpenAI’s decision also comes after Musk’s courtroom admission earlier this year concerning xAI’s breach of comparable terms, according to the report. The company said the history of Musk’s businesses was an important factor in its decision to end the Cursor agreement.
Cursor Uses OpenAI Models
Cursor has been one of OpenAI’s early users and has worked with the company for years. However, Cursor co-founder Michael Truell said OpenAI models currently account for only about 5% of Cursor’s user traffic.
Truell said Cursor had worked closely with OpenAI for years and viewed the company as neutral infrastructure for its business. He also said SpaceX was in discussions with OpenAI to try to resolve the situation.
Cursor Developers Could Be Affected
OpenAI said its main concern was the developers who rely on its models through Cursor. The company said it was prepared to support developers during the transition as access to its models is gradually phased out.
OpenAI’s Astra Model Adds To Tensions
The dispute comes as OpenAI prepares to release its upcoming model, Astra. OpenAI said its agreement with Cursor includes a limited cancellation window following a change in control and that additional accountability was important as it prepares to launch the new model.
Musk And Altman Feud Continues
The latest dispute is part of a much wider conflict between Musk and OpenAI. Musk has previously sued OpenAI and Altman, accusing the company of abandoning its original nonprofit mission.
OpenAI has rejected Musk’s allegations, making the relationship between the two sides increasingly hostile as both compete in the rapidly expanding artificial intelligence industry.
OpenAI And Cursor Partnership Ends In November
For now, OpenAI plans to continue providing its models to Cursor until November 12. This gives developers several weeks to prepare for the loss of OpenAI model access through the platform.
What The Cursor Deal Means For AI Industry
The OpenAI-Cursor dispute highlights the growing importance of ownership and control in the AI industry. As major technology companies acquire AI startups, existing partnerships and model-access agreements can face new scrutiny.
The case also shows how relationships between AI companies can change rapidly when ownership changes, particularly when the companies involved have existing commercial and legal disputes.
Musk-OpenAI Battle Enters New Phase
Elon Musk’s reaction shows that the latest Cursor dispute is unlikely to end the broader conflict with OpenAI. With SpaceX now owning Cursor and OpenAI preparing to withdraw its models from the platform, the disagreement could have implications for developers and the wider AI ecosystem.
For now, Cursor is expected to continue using OpenAI models until November 12, while SpaceX and OpenAI remain in talks over whether the partnership can be salvaged.
