OpenAI said it will stop providing AI models to Cursor, marking an end to a partnership that supplied the coding tool with OpenAI-powered capabilities.
The company said the decision reflects prior contract-compliance concerns with Elon Musk’s firms and proposed a shutoff date of November 12.
Elon Musk responded on X with, "I couldn't care less," and accused OpenAI leaders of being "untrustworthy" "I couldn't care less".
Cursor is the product of Anysphere, which SpaceX agreed to buy for $60 billion in June and completed the acquisition earlier this month $60 billion.
OpenAI also said X, formerly Twitter and now part of SpaceX, had breached the terms of its contract after Musk’s acquisition of the platform.
Michael Truell, a Cursor co-founder now at SpaceX, said the company was speaking with the OpenAI team to resolve the issue.
Anthropic said it will increase compute to support its Claude models in Cursor, and the company has already deepened compute ties with SpaceX and raised Claude usage limits in recent months.
The dispute follows a bitter legal fight earlier this year when Musk sued OpenAI in a high-profile case that ran to trial and allegations over the company's governance and nonprofit origins trial over Musk's $150 billion lawsuit.
