Overview
- OpenAI formally notified SpaceX on Friday, August 28 that it will stop supplying its models to Cursor and set November 12, 2026 as the planned cut-off date.
- The company said a tailored contract lets it end access after a change of control and that past breaches by Elon Musk–owned firms make it unable to guarantee compliance with its service terms.
- OpenAI also announced it will not provide future model releases for Cursor, naming stricter control over new systems as a key reason for the restriction.
- Anthropic co‑founder Tom Brown posted that Anthropic will boost compute for Cursor and continue serving Claude‑series models on the platform, offering an immediate technical alternative.
- The move creates short-term disruption risk for developers and products on Cursor and signals a shift in which AI firms and cloud providers will compete to supply core models to platform partners.