OpenAI to remove models from Cursor after SpaceXAI takeover
OpenAI says it will remove its models from the AI coding assistant Cursor after Cursor was acquired by SpaceXAI, citing concerns that Elon Musk’s companies may not comply with its terms of service. The move matters because Cursor is a widely used coding tool and the dispute further intensifies the long-running conflict between OpenAI and Musk.
OpenAI plans to end Cursor’s access on 12 November 2026, although Cursor could choose to terminate earlier; its chief executive said OpenAI currently serves about five per cent of customers. OpenAI pointed to Musk’s admission that xAI used OpenAI outputs to train its own models, while Anthropic said it would expand computing support for Claude in Cursor; OpenAI also cited safeguards around its forthcoming Astra model.
- OpenAI plans to remove its models from Cursor in November 2026.
- It cites alleged past contract and terms-of-service breaches by Musk’s companies.
- Cursor may rely more heavily on Anthropic’s Claude models.
Both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
Supporters of OpenAI’s decision would argue that a model provider is entitled to enforce clear terms against using its outputs to train competing systems, particularly where a rival owner has publicly acknowledged conduct that may breach those rules. They would say limiting access is a proportionate way to protect proprietary research, safety safeguards and the integrity of a forthcoming model, rather than allowing a major competitor to benefit from technology under disputed conditions. On this view, consistent enforcement is necessary to sustain investment and trust across the wider developer ecosystem.
The case against
Critics would argue that removing widely used models from Cursor risks disrupting developers and turning a commercial and personal dispute into reduced choice for customers. They may contend that alleged misuse should be addressed through transparent evidence, technical controls or targeted contractual remedies, rather than a broad withdrawal that affects users who have done nothing wrong. On this view, interoperability and competition in coding tools are better served when providers avoid using access to essential AI services as leverage in rivalry between large technology companies.
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Originally published by Engadget as “OpenAI will pull its models from Cursor due to SpaceXAI acquisition”.