OpenAI announced that it will end its collaboration with Cursor due to Cursor's acquisition by SpaceX. According to the plan, Cursor's direct access to its models will terminate on November 12, and the developers who rely on these models will be most affected, with additional support provided during the transition period.

On the same day, the official website stated that SpaceX had been notified, using the longest notice period allowed by the contract; the company has the right to terminate the contract after the change of control. The reason is based on experiences of "contract violations by companies under Musk's name," making it uncertain that SpaceX would use its technology according to the service terms; the upcoming Astra will also not connect to Cursor. The two companies have collaborated for nearly four years. Cursor previously stated that OpenAI models accounted for about 5% of user traffic and is currently in communication. The $60 billion all-stock acquisition was completed in mid-August, with Cursor incorporated into SpaceXAI in exchange for large-scale GPUs and self-developed Composer training. SpaceX did not immediately respond to requests for comment.

The termination affects the direct interface within Cursor's products, not the accounts developers have in OpenAI's own products. Existing models can continue to operate under the notice period until November 12, while new models will no longer be integrated into that editor from the announcement date. The 5% share is a momentary interruption, but the lack of Astra in the release window will change the evaluation criteria. Developer support is framed as a comforting transition, not a renewal.

From a market mechanism perspective, this is a supplier exit triggered by the acquisition. The buyer wants to keep the flagship model within its own coding entry and controllable integration, while the seller is the part of the calls within Cursor. After November, inference billing will reset to zero from Cursor's side, with traffic redirected to Anthropic, Google, Composer, or Grok coding agents. The beneficiaries are OpenAI's proprietary programming products and narrative terms, while the pressured party is the "multi-model neutral shelf" selling point. The $60 billion acquisition secures distribution and code conversations but does not guarantee forced supply; the change in control terms turns the acquisition into a supply cutoff switch.

In supplementary statements, OpenAI has listed the transition experience as a commitment to developers, without disclosing compensation or alternative amounts.

Source: Public Information