OpenAI Cuts Off $1 Billion Cursor Partnership Over Elon Musk's SpaceX Acquisition
20 Sources
[1]
OpenAI Cut Off a Billion-Dollar Customer to Avoid Elon Musk
In a late-night blog post last Friday, OpenAI said it would wind down its partnership with Cursor, the startup behind one of the most popular AI coding tools on the market. The reason OpenAI gave for the decision is effectively that it can't trust Elon Musk, whose company SpaceX recently acquired
[2]
Cursor customers will lose access to OpenAI coding models in November
OpenAI has told Cursor it will cut off access to its AI coding models from November 12, leaving Cursor customers to decide whether to switch models or switch coding platforms. endif; ?> OpenAI will stop AI coding platform Cursor from accessing its models from November 12, following the acquisition
[3]
OpenAI to end model access to Cursor after acquisition by Elon Musk's SpaceX
* OpenAI plans to wind down its contract supplying models to Cursor, with a proposed Nov. 12 cutoff. * OpenAI says it cannot be confident SpaceX will comply with its terms, citing past disputes with Elon Musk's companies. * CEO Michael Truell says OpenAI models account for about 5% of Cursor user
[4]
OpenAI will pull its models from Cursor due to SpaceXAI acquisition - Engadget
The company said it's not confident that SpaceXAI will follow its terms of service based on its experience with Elon Musk. OpenAI is planning to cut off Cursor's access from its models, following the AI coding assistant's acquisition by SpaceXAI. In a post on its website, the company said it's
[5]
OpenAI is leaving Cursor in November -- here are your 3 options
If you use Cursor with OpenAI models, a major change is coming this fall Following Cursor's acquisition by SpaceX, OpenAI plans to end its direct model-access agreement with the AI coding platform. OpenAI has proposed November 12, 2026 as the cutoff date, although the exact timing could still
[6]
OpenAI cuts off Cursor's AI models, deepening feud with Musk
OpenAI said Friday it will wind down its partnership with Cursor, the popular AI coding tool now owned by SpaceX, marking the latest escalation in the long-running dispute between OpenAI CEO Sam Altman and Elon Musk. In a company blog post, OpenAI said it notified SpaceX of its intent to end the
[7]
OpenAI cutting off Cursor AI model access after SpaceX deal
OpenAI explained its decision by saying it has no assurance that SpaceX will abide by its terms of service, pointing to its "experience with Elon Musk's companies violating contracts." The company also highlighted Musk's courtroom admission, during cross-examination in the lawsuit, that xAI had
[8]
OpenAI and Cursor: An old partnership falling apart because of Musk-Altman tiff
Cursor, the AI-powered coding tool built by startup Anysphere, was one of OpenAI's earliest and most prominent customers. It integrated OpenAI's models into its product for years and relied on OpenAI's platform. OpenAI said on Friday that it plans to stop providing AI models to Cursor, the
[9]
OpenAI Bans Cursor Access Over Alleged SpaceX Data Misuse
OpenAI's recent decision to terminate its partnership with Cursor marks a significant shift in the AI landscape, particularly for developers who rely on third-party platforms. As announced, the partnership will officially end by mid-November 2026, cutting off access to OpenAI's models on Cursor.
[10]
Anthropic Pounces As OpenAI Abandons SpaceX's Cursor, Vowing To Increase Claude Compute Even As OpenAI Cites Contract Distrust
The animosity between Elon Musk and Sam Altman is as convoluted as sordid, replete with a veritable smorgasbord of moves and countermoves that frequently spill out from the personal sphere and into the commercial one. Now, just a few hours after Altman's OpenAI announced the termination of its
[11]
OpenAI to End Cursor Access to AI Models on Nov. 12 - SpaceX (NASDAQ:SPCX)
Elon Musk's SpaceX Faces OpenAI Snub as ChatGPT Maker Cuts Ties With Cursor Over Contract Compliance Concerns: 'Cannot Be Confident' On Friday, OpenAI said it will end its partnership with Cursor, the AI coding assistant now owned by Elon Musk's Space Exploration Technologies Corp.
[12]
OpenAI Cancels Cursor Partnership Citing Distrust of Elon Musk | PYMNTS.com
The artificial intelligence startup announced the change Friday (Aug. 28), saying it was driven by OpenAI's contentious relationship with SpaceX head Elon Musk. "This decision was incredibly tough, as we care deeply about our models being broadly available for developers," OpenAI wrote on its
[13]
OpenAI to Cut Off Cursor Models After SpaceX Acquisition
OpenAI will wind down its contract to supply models to Cursor following its acquisition by SpaceX, according to a statement by the company. OpenAI notified SpaceX on August 28 that it plans to terminate the agreement. November 12, 2026 has been proposed as the shutoff date. The company said it was
[14]
OpenAI to cut off AI models for SpaceX-owned Cursor, escalating feud with Musk
OpenAI said late Friday that it plans to stop providing AI models to Cursor, the coding-tool company now owned by Elon Musk's SpaceX, marking a further escalation in the bitter rivalry between OpenAI CEO Sam Altman and Musk. Musk and Altman have been at odds for years, a feud that culminated
[15]
OpenAI to End Cursor Model Access After SpaceX's USD 60 Billion Acquisition
The decision will end nearly four years of cooperation between OpenAI and the AI coding platform. OpenAI linked the move to contract compliance and a change-of-control clause. Cursor said OpenAI models handle about 5% of its traffic, limiting the immediate operational effect. it notified SpaceX
[16]
OpenAI to end Cursor partnership after SpaceX acquisition By Investing.com
Investing.com -- OpenAI plans to end its partnership with AI coding platform Cursor after Elon Musk's SpaceX acquired the company, Bloomberg reported Friday. OpenAI said it has informed Cursor that it intends to wind down their contract, with a proposed shutoff date of Nov. 12, according to a
[17]
OpenAI Cuts Cursor Access: November 12 Deadline Set
after November 12, 2026, following SpaceX's acquisition of Cursor's parent company, Anysphere. OpenAI notified SpaceX on August 28 and cited concerns over contract compliance. The decision affects Cursor users worldwide who access OpenAI models through the coding platform. OpenAI will stop direct
[18]
OpenAI to cut off AI models for SpaceX-owned Cursor, escalating feud with Musk
Aug 28 (Reuters) - OpenAI said on Friday that it plans to stop providing AI models to Cursor, the coding-tool company now owned by Elon Musk's SpaceX, marking a further escalation in the bitter rivalry between OpenAI CEO Sam Altman and Musk. Musk and Altman have been at odds for years, a feud that
[19]
OpenAI to end agreement with SpaceX's AI coding tool Cursor, deepening Musk-Altman clash
Aug 28 (Reuters) - OpenAI said on Friday that it plans to stop providing AI models to Cursor, the coding-tool company now owned by Elon Musk's SpaceX, in a further escalation of the bitter rivalry between OpenAI CEO Sam Altman and Musk. SpaceX announced a deal to buy Anysphere, the startup behind
[20]
Sam Altman vs Elon Musk: OpenAI ends Cursor deal after SpaceX acquisition, cites contract violation concerns
OpenAI said it is not confident that SpaceX would use its technology within its terms of service. OpenAI is ending its deal to provide its AI models to Cursor, following SpaceX's acquisition of the company. The ChatGPT maker said it has notified SpaceX that it plans to terminate the contract on
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OpenAI announced it will terminate Cursor's access to its AI coding models by November 12, 2026, following SpaceX's $60 billion acquisition of the platform. The decision ends a partnership that generated over $1 billion in annualized revenue, with OpenAI citing concerns about SpaceX's compliance with its terms of service based on past contractual disputes with Elon Musk's companies.
OpenAI Terminates Partnership with Cursor Following SpaceX Acquisition
OpenAI announced late Friday that it will wind down its contract providing AI coding models to Cursor, with a proposed shutoff date of November 12, 2026
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. The decision comes after SpaceX completed its $60 billion acquisition of Cursor parent company Anysphere on August 143
. OpenAI stated it cannot be confident that SpaceX will use its technology within its terms of service, based on its experience with Elon Musk's companies violating contracts4
. The move represents a significant financial sacrifice, as Cursor was one of OpenAI's top five customers in terms of revenue at the start of 2026, with OpenAI estimating the partnership would bring in more than $1 billion in annualized revenue1
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Source: Digit
Contractual Disputes and Compliance Concerns Drive Decision
OpenAI cited specific instances of contractual disputes with Musk's companies as justification for ending OpenAI model access to Cursor. After Musk acquired Twitter, now part of SpaceX, the company broke the terms of its contract with OpenAI alongside many others
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. Under oath earlier this year during his deposition in a lawsuit against OpenAI, Elon Musk admitted that xAI, now also part of SpaceX, had violated OpenAI's terms of service through a process called distillation—using OpenAI's output to train its own models1
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. As AI capabilities advance, OpenAI emphasized it has a new level of accountability to ensure its upcoming model, Astra, is being used in accordance with its terms4
. The company's decision reflects growing concerns about protecting its intellectual property as it prepares for a public offering next year1
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Source: Geeky Gadgets
Alternative Options for Cursor Users After November Cutoff
Cursor CEO Michael Truell responded that OpenAI models serve about 5% of Cursor user traffic and that the companies are discussing the decision
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. However, OpenAI's head of core products, Thibault Sottiaux, quickly pointed out that token usage is not a proxy for revenue nor value created1
. Cursor users have three primary options moving forward: they can bring their own OpenAI API key to connect directly through OpenAI rather than Cursor's model agreement, though this won't work with features including Cursor Tab, autocomplete, Auto, Cloud or Background Agents, Automations, Cursor CLI or Cursor's API and SDK5
. Users can also install OpenAI's Codex IDE extension directly inside the editor since Cursor is based on VS Code5
. The third option is to continue using Cursor with alternative AI coding models from other providers.
Source: InfoWorld
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Anthropic Claude Models Fill the Gap as Competition Intensifies
Anthropic co-founder Tom Brown announced his company will continue to increase compute to support Anthropic Claude models in Cursor and expressed excitement for what comes next with them at SpaceX
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. This stance drew criticism from some technology executives who reminded Brown of Anthropic's history with the AI coding assistant Windsurf, which Anthropic blocked from accessing its Claude AI models last June3
. Anthropic may have strategic reasons to maintain its relationship with Cursor, as it depends on SpaceX for $45 billion of data center capacity1
. The AI industry is watching closely as the market for AI-assisted coding tools heats up, with OpenAI poised to go public next year while rival Anthropic has been holding preliminary meetings with bankers ahead of a possible IPO this year at an expected valuation as high as $2 trillion3
.Long-Term Implications for Developer Relations and AI Coding Tool Market
OpenAI acknowledged in its blog post that ending the partnership may damage its standing with developers—a community it has spent years carefully working to win over—by cutting off a major channel they use to access OpenAI's models
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. The decision highlights the complex dynamics in the AI industry as companies navigate partnerships while protecting their competitive interests. OpenAI and Cursor have a long, complicated history, with OpenAI's startup fund being one of the first investors in Cursor's 2023 seed round1
. At that time, the idea that a young startup could compete with Microsoft's popular AI coding tool, GitHub Copilot, seemed like a pipe dream, but Cursor's popularity with developers became undeniable1
. OpenAI even approached Cursor about an acquisition at one point, though the talks never reached an advanced stage1
. As OpenAI builds Codex into a large AI coding business, it increasingly finds itself competing with Cursor for customers, making the SpaceX acquisition a change-of-control clause trigger that OpenAI could not ignore5
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