OpenAI has shipped an Apple Messages plugin for the ChatGPT desktop app on macOS, letting the chatbot read and search a Mac’s iMessage, SMS, and RCS conversations and prepare or send texts through the Messages app itself. The feature landed August 20, 2026, in the company’s release notes, and it works inside Codex and ChatGPT Work (the agentic surfaces OpenAI has been building out all year) rather than in ordinary ChatGPT chats. The plugin is available on all plans, but with a hard hardware…