OpenAI's official plugins for Claude Code and Cursor represent a deliberate pivot: instead of pulling developers toward ChatGPT's own environment, OpenAI is meeting them inside the tools they already use. The architectural implication is that OpenAI has concluded its API is more defensible than its interface — and that winning the interface war is less valuable than being the default provider inside whatever interface wins.
This is also a hedge against the model-agnostic momentum already building in the developer community. The migration of Claude-specific integrations into provider-agnostic shells —