OpenAI ends Cursor direct model access on November 12

• OpenAI proposes to end Cursor's direct access to its models on November 12, 2026, following Cursor's acquisition by SpaceX, as OpenAI's announcement states.
• A contractual change-of-control cancellation window is the mechanism behind the date, according to eliebakouch's excerpt of OpenAI's statement.
• Developers can still bring their own OpenAI API keys into Cursor and use OpenAI's IDE extensions there, as thsottiaux's post lays out.
• Claude capacity in Cursor is set to continue, with NotTomBrown's post saying compute for Claude models will increase.

Cursor's August 14 acquisition post says its SpaceXAI partnership began in April and promises access to the world's largest GPU fleet. Cursor had also shipped Grok 4.6 with SpaceXAI before the OpenAI decision.

OpenAI said in its published statement that it notified SpaceX on August 28 of its intent to wind down the Cursor contract, with November 12 as the proposed cutoff. It said the agreement gives it only a limited post-acquisition window to cancel, and that it selected the latest date allowed while withholding future models from Cursor.

OpenAI says it cannot be confident SpaceX will use its technology under its terms, citing past contractual violations by Musk companies, including Twitter after its acquisition and xAI. The company also said large-partner integrations normally need custom contracts for terms compliance and safety at scale.

A ai_for_success recap put OpenAI's upcoming Astra model into the early public framing of the cutoff. OpenAI's statement says Astra raises its required level of accountability for how the model is used.

The wind-down applies to Cursor's direct contract access. In thsottiaux's post, OpenAI named two routes it says will remain available:

1. A customer's own OpenAI API key in Cursor.
2. OpenAI's IDE extensions for Cursor.

OpenAI said it has worked with Cursor for nearly four years and would support affected developers through the transition, while continuing to work with open-source and closed-source tools and harnesses.

A post from NotTomBrown says Cursor has been an Anthropic partner since Sonnet 3.5, and that compute for Claude models in Cursor will continue to increase after the SpaceX acquisition.

Another Cursor partner, trq212, said the teams would continue working together. When asked whether that referred to SpaceX, trq212's reply said the companies now partner in multiple ways.

Cursor's own acquisition announcement describes a separate effort to train stronger, lower-cost models using SpaceX compute.

Cursor already had an in-house model path before OpenAI's deadline. Its Grok 4.6 announcement says the model is available in Cursor and Grok Build, and that its first week included double usage in both products.

The message shown in testingcatalog's Grok Bot screenshot says Grok Bot is now available to all SuperGrok and Cursor Pro subscribers, and that weekly usage limits were reset for all users.