OpenAI is set to cut Cursor off after SpaceX took control of the coding tool. The move adds to the fight between Sam Altman and Elon Musk. But the change may matter most for developers who use Cursor every day.
OpenAI plans to end Cursor deal
As reported by OpenAI’s official website, they plan to stop providing its AI models to Cursor, a coding tool now owned by Elon Muskโs SpaceX. The shutoff date is November 12, 2026. OpenAI said it gave the notice allowed under its contract. SpaceX completed its $60 billion all-stock deal for Anysphere, the company behind Cursor, earlier this month. The deal was agreed in June. OpenAIโs contract with Cursor included a change-of-control clause.
The main reason is trust. The company said it cannot be sure that SpaceX will use its technology within its terms of service. OpenAI also pointed to past contract problems with other Musk firms. OpenAI said X, once called Twitter, broke the terms of its contract after Musk bought the platform. It also pointed to Muskโs sworn testimony about xAI. OpenAI said Musk admitted that xAI had violated its terms. The change means OpenAI models will no longer be available through the platform.
Musk hits back as OpenAI as Cursor looks for a solution
The dispute has become another public clash between Musk and Altman. Musk replied to OpenAIโs move by saying he โcouldnโt care less.โ He also called Altman and OpenAI president Greg Brockman untrustworthy. The fight between the two men has lasted for years. It grew into a major legal battle after Musk sued OpenAI and Altman over the companyโs move away from it’s non profit mission. A federal jury ruled against Musk earlier this year, finding that the lawsuit had been filed too late.
Cursor, however, is trying to keep the issue from becoming a bigger problem for its users. Michael Truell, a Cursor co-founder who is now an executive at SpaceX, said the company is still speaking with OpenAI to find a way forward. OpenAIโs models make up only around 5% of the traffic generated by Cursor users. That means the impact may be limited for many users. Still, losing access to OpenAI models will remove one more choice from the platform.
Anthropic offers support as developers face change
SpaceX’s fight with OpenAI has also created an opening for Anthropic. The company said it plans to add more computing power to support its Claude models inside Cursor. Anthropic already works with the coding platform. Cursor now has another strong option. The platform can use other AI models, so it is not tied to OpenAI alone. OpenAI said it has worked with Cursor for nearly four years and respects its team and product.
OpenAIโs next model, Astra, is another key point. The company said it will not provide future models to Cursor after the contract ends. The decision is not just about current access. OpenAI is also thinking about how its newer systems will be used. For now, November 12 is the key date. The latest move shows how fast business deals can reshape the AI tools people use every day.
Authorโs Opinion
The dispute is bigger than Cursor. It is another sign of how closely business, trust and personal rivalry now shape the AI industry. Developers will feel the change, but Cursor has other model choices. The bigger story is what this means for future AI partnerships.
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