Quick answer
OpenAI said on August 28, 2026 that it intends to wind down the contract through which it provides models to Cursor, with November 12, 2026 as the proposed shutoff date. OpenAI also said future OpenAI models would not be supplied to Cursor under that relationship. Cursor itself is not shutting down, and the announcement is not a general OpenAI API deprecation. Teams that rely on OpenAI models inside Cursor should inventory pinned workflows and test alternatives while watching both companies for implementation details.
Quick answer: November 12 is OpenAI's proposed Cursor shutoff date
OpenAI says it has notified SpaceX that it intends to wind down the contract under which OpenAI models are provided to Cursor. The company names November 12, 2026 as the proposed shutoff date and says future OpenAI models will not be supplied to Cursor through the relationship. This is advance notice, not an immediate removal: OpenAI models remain documented in Cursor at the time of publication.
The announcement covers Cursor's OpenAI supply contract, not the whole editor
Cursor currently documents a multi-provider catalog that includes OpenAI, Anthropic, Google, and SpaceXAI models, as well as Cursor's own models. Ending one supplier contract therefore does not mean that Cursor itself is closing. It does mean teams should identify where their rules, agents, evaluations, or Auto routing depend on an OpenAI model rather than assuming every Cursor workflow will behave the same after the proposed date.
OpenAI attributes the decision to the SpaceX acquisition and its terms
Cursor announced on August 14 that it had been acquired by SpaceX. OpenAI says its agreement permits cancellation after a change of control. OpenAI also states that it is not confident SpaceX will use its technology within OpenAI's terms and cites what it describes as earlier contractual and terms-of-service issues involving Elon Musk's companies. Those statements are OpenAI's stated rationale for the decision, not independently established findings in this article.
Current Cursor documentation lists GPT-5.6 models, but the notice does not enumerate model IDs
Cursor's current model page lists GPT-5.6 Luna, GPT-5.6 Sol, and GPT-5.6 Terra among its OpenAI choices. OpenAI's announcement does not provide an exhaustive list of affected model IDs, regions, plans, or Cursor features. Treat the present documentation as a snapshot of access before the proposed cutoff, not a promise that each listed OpenAI model will remain available through or after November 12.
The notice does not announce a general OpenAI API shutdown
OpenAI's statement is specifically about its contract for providing models to Cursor. OpenAI continues to publish a separate API model catalog, and the Cursor notice does not say those API models are being retired for all developers. It also does not explain whether Cursor's bring-your-own-key flows will continue, change, or be restricted. Until either company publishes implementation details, teams should not assume a personal API key is a guaranteed workaround.
Teams have time to run a controlled migration test
Start by listing production workflows pinned to an OpenAI model and separating them from workflows that use Cursor's Auto routing. Save representative prompts, repository rules, expected patches, and review criteria. Then run the same tasks with explicitly selected alternatives, recording correctness, tool behavior, latency, and cost instead of judging one anecdotal completion. Keep a rollback path and follow official Cursor and OpenAI updates before changing annual subscriptions or organization-wide defaults.
Astra is mentioned as upcoming, not released in this announcement
OpenAI uses an upcoming model named Astra as an example when it says future models will not be provided to Cursor. The notice does not announce Astra's release date, specifications, price, general availability, or availability in Chat AI. This is also a Cursor integration change rather than a Chat AI catalog update. A multi-model workspace such as Chat AI can help compare general answers across available models, but it does not reproduce Cursor's repository-aware coding environment.
Sources: OpenAI
Frequently asked questions
What readers usually ask
Is November 12, 2026 a final guaranteed cutoff date?
OpenAI calls November 12 the proposed shutoff date and says it intends to wind down the contract. That is an official plan, but the wording leaves room for implementation details or negotiations to change. Check both companies' official updates before the date.
Which OpenAI models in Cursor are affected?
OpenAI's announcement does not enumerate model IDs. Cursor's current documentation lists GPT-5.6 Luna, Sol, and Terra as OpenAI options, but that is a current catalog snapshot rather than an exhaustive affected-model list.
Is Cursor shutting down?
No. The announcement concerns the contract supplying OpenAI models to Cursor. Cursor documents models from several providers and its own model family, and neither company's announcement says the Cursor product is closing.
Is OpenAI shutting down its API for all developers?
No such general shutdown is announced. OpenAI's notice is about its Cursor model-supply contract, while OpenAI continues to publish a separate API model catalog.
Will an OpenAI API key keep working in Cursor after the proposed cutoff?
That is not yet clear from the official announcements. Teams should not treat bring-your-own-key access as a confirmed workaround until Cursor or OpenAI explains how the contract change affects it.
Did OpenAI release Astra?
No. OpenAI mentions Astra as an upcoming model in the Cursor decision, but the notice does not provide release, pricing, specification, or availability details.
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