OpenAI to end model supply to SpaceX-owned Cursor after acquisition

OpenAI notified SpaceX of its intent to wind down the contract supplying models to Cursor, with a proposed shutoff date of 12 November 2026, citing lack of confidence that SpaceX would comply with terms of service following the acquisition of Anysphere. The decision references prior contract violations by companies associated with Elon Musk. It removes OpenAI models from a major coding tool now under SpaceX control and intensifies the existing rivalry.