Julia Liuson, president of the Microsoft division responsible for developer tools such as AI coding service GitHub Copilot, recently sent an email instructing managers to evaluate employee performance based on their use of internal AI tools like this.

"AI is now a fundamental part of how we work," Liuson wrote. "Just like collaboration, data-driven thinking, and effective communication, using AI is no longer optional — it's core to every role and every level."

Liuson told managers that AI "should be part of your holistic reflections on an individual's performance and impact."

Microsoft's performance requirements vary from team to team, and some are considering including a more formal metric about the use of internal AI tools in performance reviews for its next fiscal year, according to a person familiar with the situation. This person asked not to be identified discussing private matters.