OpenAI cuts out SpaceX-owned Cursor
Good morning, AI enthusiasts, and welcome to our 9,208 new readers. Sam Altman and Elon Musk have fought over companies, lawsuits, talent, and more. Now the feud is landing somewhere developers may actually feel it… One of the most popular AI coding editors on the market. OpenAI's models will exit the newly SpaceX-owned Cursor by…
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Summary
OpenAI will remove its models from the AI coding editor Cursor by November 12. The company cited Elon Musk's history of violating contracts as the reason for the decision, pointing to past disputes like the Twitter deal and xAI's use of OpenAI's outputs. OpenAI stated the move was "incredibly tough" and that they extended the wind-down period as much as their contract allowed after SpaceX acquired Cursor last month.
Why it matters
This decision places Cursor, a popular coding editor, in the middle of the ongoing feud between OpenAI's Sam Altman and Elon Musk. OpenAI's departure affects developers who relied on its models within Cursor. While Cursor's CEO stated OpenAI models represented only 5% of its AI traffic, the move signals a potential shift in how AI labs handle partnerships, especially when intertwined with personal rivalries. Competitors like Google Gemini and Anthropic may see an opportunity to gain favor with developers.
Related: Google: End-to-end agentic development with Google Gemini, Antigravity, and GitLab · Anthropic: Anthropic Cookbook: feat(claude_agent_sdk): add scheduled repository reviewer recipe (#860) · Microsoft: Gemini 3.8 Flash is now available in GitHub Copilot · Meta: Nvidia launches free tool that links idle computers into a personal AI data center · xAI: OpenAI cuts out SpaceX-owned Cursor
Rated middle: a real update, not a headline event.
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Questions people ask
- Why is OpenAI leaving Cursor?
- OpenAI is leaving Cursor due to Elon Musk's history of violating contracts, citing past disputes as the reason for the decision.
- When will OpenAI models be removed from Cursor?
- OpenAI models will be removed from Cursor by November 12.
- How much of Cursor's AI traffic did OpenAI represent?
- Cursor's CEO stated that OpenAI's slice of its AI traffic was a "seemingly light 5% of overall usage."
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Page generated Sep 3, 2026. Summaries are Subvolts' own; the story belongs to The Rundown AI.