OpenAI will terminate its contract with Cursor effective November 12, 2026, after SpaceX acquired the company, citing Elon Musk's history of breaking contracts. Users can still access GPT models via their own API keys. Cursor co-founder Michael Truell says OpenAI models account for only five percent of Cursor's AI traffic. Anthropic's Tom Brown positioned Claude as a reliable alternative, despite previously cutting off Windsurf and OpenAI itself.
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