OpenAI plans to end Cursor’s model access after its SpaceX acquisition

OpenAI said it intended to end its model-supply agreement with Cursor following Cursor’s acquisition by SpaceX, proposing November 12, 2026 as the cutoff. It cited a contractual change-of-control window and compliance concerns. The concerns are OpenAI’s stated rationale, not an independent finding about Cursor users.

Access to multiple APIs does not make a transition automatic. Models can behave differently across long coding tasks, accumulated context and established customer workflows. Contractual continuity and practical substitutability are separate requirements.

The announcement sets out intended action and timing. It does not establish the final transition arrangements or how each affected workflow will operate afterward.