A composite image of Sam Altman and Satya Nadella
OpenAI CEO Sam Altman (left) and Microsoft CEO Satya Nadella
  • Microsoft is a key OpenAI investor but Windows users must wait to get access to ChatGPT on desktop.
  • The app will be available for both free and paid users on Mac first of all.
  • OpenAI said it plans to launch a Windows version "later this year."

A ChatGPT app is coming to Apple's Mac laptops before Windows despite Microsoft's hefty investment in the company.

In a blog post, OpenAI said a new ChatGPT desktop app for macOS will be available for both free and paid users. The rollout for Plus users kicked off on Monday.