What happened
OpenAI has announced it will stop providing model services to Cursor, the AI coding platform now owned by SpaceX, with a proposed termination date of November 12, 2026. The company said the decision stems from 'past experience,' citing alleged breaches by Musk's companies and doubts that SpaceX would use the technology within the terms of service.
Responding on X, Musk said he 'couldn't care less' and accused OpenAI CEO Sam Altman and president Greg Brockman of being 'completely untrustworthy,' claiming they 'stole an open-source nonprofit.'
Why it matters
The move deepens a public feud between Musk and OpenAI, escalating beyond legal disputes into direct product-level consequences. Since SpaceX only recently completed its acquisition of Cursor's parent company, Anysphere, the termination could affect the coding platform's reliance on OpenAI's models.
Musk's dismissive reaction signals he is unlikely to back down, and the dispute now ties together OpenAI's business decisions, Musk's acquisition of a coding tool, and his broader legal battle over OpenAI's direction.
Key facts
OpenAI notified SpaceX of a proposed termination date of November 12, 2026, for Cursor's model access.
SpaceX agreed in June to acquire Cursor's parent company Anysphere in a $60 billion all-stock deal, completing it earlier this month.
Musk previously filed a $150 billion lawsuit against OpenAI, accusing Altman and the company of abandoning their original nonprofit mission.
What to watch next
Whether OpenAI follows through with the November 2026 termination and whether SpaceX or Cursor secures alternative model providers in the meantime.
How the related legal battle between Musk and OpenAI evolves, and whether this service cutoff influences the ongoing dispute over control and mission.