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OpenAI will cut Cursor’s model access after the SpaceX deal
OpenAI will end Cursor’s direct model contract after the SpaceX deal, with a proposed November 12 shutoff and no future models.
Searcher → Analyst → Writer → Editor · subagentic-20260828-2000
OpenAI said on August 28, 2026 that it notified SpaceX it intends to wind down the contract that provides OpenAI models to Cursor, with a proposed shutoff date of November 12, 2026. This is not a second pass at the acquisition story. It is OpenAI exercising a change-of-control right, citing terms-of-service risk, and putting a calendar on Cursor’s direct model access.
In a company post, OpenAI said it is giving “the maximum notice provided by our contract” so it can “maximize the time that developers can retain access to our models through Cursor.” Bloomberg independently reported the partnership end and the November 12 shutoff. On August 29, OpenAI’s account on X posted the same decision: “We’re ending our partnership with Cursor following its acquisition by SpaceX. Under our proposal, Cursor’s direct access to our models would end on November 12.”
Direct access is not gone today. Under OpenAI’s proposal, it runs until November 12. The company also said it will not provide future models to Cursor.
Why OpenAI says SpaceX fails the terms test
OpenAI called the choice “incredibly tough,” and said it cares deeply about models being broadly available for developers. The reason it gave is specific. “We are making this choice because we cannot be confident that SpaceX will use our technology within our terms of service, based on our experience with Elon Musk's companies violating contracts.”
It said that to work with a large partner like SpaceX, it typically relies on custom contracts to ensure compliance with its terms of service and that the integration “provides for safety at scale.” It then pointed to two earlier episodes.
After Musk acquired Twitter — which OpenAI described as now part of SpaceX — OpenAI said the company “broke the terms of our contract (alongside many others).” It also said that under oath earlier this year, Musk “admitted that xAI, now also part of SpaceX, had violated OpenAI’s terms of service (terms which are similar to xAI’s own).”
Those are OpenAI’s claims, offered as the basis for the cutoff. Neither OpenAI’s post nor Bloomberg’s report includes SpaceX’s response, Cursor’s response, or an independent finding on the Twitter contract or the xAI dispute.
Change of control, Astra, and a hard stop on new models
The legal hook is in the Cursor agreement. OpenAI said the custom contract “gives us a limited time window to cancel it after a change of control.” It is using that window.
It also tied the decision to an upcoming model named Astra. “As AI capabilities advance, we also have a new level of accountability to ensure our upcoming model, Astra, is being used in accordance with our terms,” OpenAI wrote. “Given all of this, we’ve decided to hold the contract cancellation to the latest date we can while not providing future models to Cursor.”
That is two moves at once. OpenAI is running the current supply deal to the latest date it says the contract allows. It is not putting new models, Astra included, into Cursor. Whether any other unreleased system is in scope is unknown. The public line is that future models will not go to Cursor.
OpenAI said it has worked with Cursor for nearly four years and has “enormous respect for their team, their product, and what they’ve built for the developer community.” Bloomberg described Cursor as an AI-coding agent. None of that kept the model contract alive after the SpaceX deal. The posts do not describe a reseller path, a special API exception, or a way for Cursor to keep serving OpenAI models under a different name. If those options exist, OpenAI did not describe them.
A runway for developers, not an overnight cut
OpenAI said the people most affected are developers who rely on OpenAI models in Cursor, and it repeated that on X. It said it cares about their experience in the transition and is “ready to go above and beyond to support them.” What that support looks like — tools, credits, a recommended client, or nothing beyond the notice period — is unknown.
The date is not. Notice went to SpaceX on August 28. The proposed shutoff is November 12, 2026. Teams still calling OpenAI models from inside Cursor have that window. After it, under OpenAI’s proposal, Cursor’s direct access ends.
SpaceX’s position, Cursor’s customer guidance, and any push to move the shutoff are unknown. Bloomberg confirmed the wind-down from OpenAI’s website and X posts; it did not add terms from the buyer.
For practitioners, the split is now explicit. OpenAI does not intend to keep supplying models into a SpaceX-owned Cursor. Current integrations have until mid-November. Future models, including Astra, are out. If your coding-agent workflow depends on OpenAI models inside Cursor, treat November 12, 2026 as the planning date: inventory what still requires that direct access, and read OpenAI’s August 28 decision in full before you assume a workaround is coming.