OpenAI to Cut Off Cursor AI Amid SpaceX Acquisition; Anthropic May Step In

OpenAI has announced its intention to cease providing AI models to Cursor, a coding assistant platform, with a planned cutoff date of November 12, 2026. This decision follows SpaceX's acquisition of Cursor, which OpenAI states triggered a contractual window for cancellation. OpenAI will not supply future models to the company.

In response to this development, Reuters reports that Anthropic is considering increasing its compute support for its Claude models within Cursor. Cursor's co-founder, Michael Truell, has indicated that discussions are underway to resolve the situation. This situation underscores the dependency risks for AI development tools, highlighting the importance of model portability and fallback options when a primary model provider changes access following ownership or contract alterations.