Mac users can now give ChatGPT their entire Messages history and have it write texts. Hand OpenAI your house keys while you’re at it.
The latest version of ChatGPT for Mac can control Messages.
Since January 2026, users have been able to hand over all of their Apple Health data to OpenAI, in return for medical advice that can be dangerously wrong. Despite earning at least one more lawsuit because of that, OpenAI is pressing ahead, and has now chosen to take on Messages on the Mac.
A new Messages plugin for ChatGPT is intended to search your messages, which could be handy. It’s meant to summarize message threads, which could be a blessing.