Overview
- OpenAI told SpaceX on Friday that it plans to wind down its contract supplying models to Cursor and proposed November 12, 2026 as the cutoff date.
- The company said it invoked a change‑of‑control clause after SpaceX completed a roughly $60 billion acquisition of Cursor’s parent, citing past contract breaches by Musk‑controlled businesses as the reason for distrust.
- OpenAI also announced it will withhold future releases, including its forthcoming model Astra, from Cursor during the transition period.
- Cursor’s leadership says OpenAI models make up about 5% of its traffic and that talks with OpenAI are ongoing, while Anthropic has pledged to increase Claude compute on Cursor to help cover the gap.
- Developers will need to migrate or use alternatives such as bringing their own OpenAI API keys, OpenAI’s Codex IDE extensions, gateway providers, or rival models, and the dispute highlights how ownership and contract terms now shape who controls access to leading AI models.