Top story
OpenAI is leaving Cursor: stop binding workflows to one model supplier
https://openai.com/index/our-decision-on-cursor-following-its-acquisition-by-spacex/
OpenAI says it will stop supplying models to Cursor on November 12, 2026, using the full notice period in its contract after SpaceX acquired the company. It argues that the change of control and earlier contract violations by Elon Musk’s companies leave it unable to trust SpaceX’s use of its technology; future OpenAI models will also stay out of Cursor. The developer consequence matters more than the CEO feud: an editor dependency changed owners, and a model can now disappear from the workflow. In a 469-comment thread, redox99 identifies the structural weakness in reselling third-party APIs: the upstream vendor controls access while competing with subsidized plans of its own. I would inventory prompts, rules, and tasks that depend specifically on OpenAI inside Cursor, then exercise one fallback before November. Model portability has become an operational requirement, not an architecture-slide aspiration.
Two ideas worth keeping
Use Datalog to remember what remains true. Lemmalog converts observations into facts and rules, tracks provenance, and retracts dependent conclusions when an assumption fails. On LongMemEval it used roughly 2,700 tokens per question versus 104,000 for full context, though PropMem still led overall. I prefer that division of labor to promises of infinite context: let the model parse ambiguity and make deterministic machinery own state and invalidation.
Debian chose responsibility over an AI ban. The winning general-resolution option neither endorses nor prohibits generative AI, but keeps the same standards for quality, correctness, maintainability, and legal compliance; contributors must understand, review, and test the output. chuckadams captured the useful core: AI or not, it remains your code. I see a sound baseline, not an anti-slop mechanism—maintainers still need rejection authority and test evidence.
Models can change and assumptions can fail; ownership of the engineering decision still belongs with the reviewer.
— Tin