A model supplier cuts off a rival's newly acquired subsidiary

Claim

OpenAI notified SpaceX it will wind down Cursor's model access by November 12, citing Musk companies' record of breaking contracts, with Cursor's chief executive responding that OpenAI serves about 5% of its traffic and that it had trusted that platform to be neutral infrastructure for its business, while Anthropic answered within hours pledging more compute.

Reporting date: 2026-08-29 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

• Welcome to August 29, 2026 (theinnermostloop.substack.com)