OpenAI intends to discontinue direct access to its neural networks for the Cursor code editor. The proposed termination date is set for November 12, 2026. The parties have not yet agreed on a final deadline. The decision follows a recent change of ownership of the popular service. On August 14, SpaceX acquired Cursor's developer, Anysphere, for $60 billion. The service's new management immediately announced plans to utilize the parent company's computing infrastructure, which will help develop more powerful and cost-efficient models.
OpenAI representatives cited serious concerns to explain their decision. The developer has doubts about SpaceX's compliance with licensing requirements. The company referenced its previous negative experience working with Elon Musk's businesses. After acquiring social network X in October 2022, his company violated contractual obligations. In 2026, the billionaire confirmed under oath similar deviations from terms of use in the xAI project. The current agreement with the editor includes a limited window for termination following a change of control. The developer chose the latest permissible date to allow for a smooth transition.
Cursor will no longer receive future neural networks from its former partner. The developer separately mentioned the upcoming Astra model, for which significantly stricter licensing compliance controls are planned. The two parties' collaboration lasted nearly four years. Cursor co-founder Michael Truell estimated OpenAI's share of traffic at approximately five percent. Negotiations between the parties are ongoing to resolve the dispute. The neural networks will not disappear entirely from the service — users will be able to connect them via a personal API key or the Codex extension for their development environment. Compatible third-party gateways are also supported.
Until the agreed date, current models will remain fully available, unless the editor itself initiates an early disconnection. Against the backdrop of this news, key competitors have responded. Anthropic's Head of Infrastructure Tom Brown made an important statement, confirming continued support for the Claude neural network in Cursor and announcing that the company will increase the computing resources allocated for this purpose. Earlier in July, SpaceX's xAI division introduced the Grok 4.5 model for coding, which was trained in collaboration with the editor and integrated directly into its interface.