™OpenAI Models Leave Cursor on Nov 12 After SpaceX Acquisition
OpenAI's models will stop being supplied to Cursor on Nov 12, after SpaceX acquired Cursor's parent Anysphere for $60 billion; Cursor says OpenAI models account for about 5% of its traffic, and other models are unaffected.
What happened
Cursor is an AI code editor built by Anysphere, and its model picker has offered models from OpenAI, Anthropic, Google and xAI alongside its own Composer models. SpaceX announced in June that it would acquire Anysphere in an all-stock deal valued at $60 billion; the deal closed on Aug 14, making Cursor a SpaceX company.
In late August, OpenAI said in a blog post titled 'Our decision on Cursor following its acquisition by SpaceX' that it intends to wind down its contract supplying models to Cursor, with a proposed cutoff of Nov 12, because it could not be confident SpaceX would use its technology within its terms of service, citing past contract disputes involving Musk's companies. OpenAI also said future models, including the upcoming Astra, will not come to Cursor.
Cursor CEO Michael Truell said OpenAI models serve about 5% of Cursor's traffic and that talks with OpenAI continue. Developers can still use their own OpenAI API key inside Cursor or use OpenAI's IDE extensions; within hours of OpenAI's announcement, Anthropic said it would add compute for Claude inside Cursor.
Key facts
- Cutoff date: Nov 12 is a proposed date, not a confirmed one; OpenAI's help page says the official date will be shared once confirmed, and Cursor may end access sooner
- Models affected: The remaining OpenAI options in Cursor, such as older GPT-5.6 models; the newer GPT-6 family is already absent, and future models including Astra will not come to Cursor
- Unaffected: Claude, Gemini, Grok and Cursor's own Composer models; Anthropic said it would add compute for Claude inside Cursor
- Workarounds: Developers can use their own OpenAI API key inside Cursor or use OpenAI's IDE extensions
- Deal background: SpaceX announced in June that it would acquire Anysphere in an all-stock deal valued at $60 billion; the deal closed on Aug 14
- Scale of the impact: Cursor's CEO said OpenAI models account for about 5% of Cursor's traffic; talks between the two companies continue
Why it matters
After the acquisition closed, model supply ends because the editor changed owners; about 5% of Cursor's traffic is affected, while other models are unaffected.
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