Computer scientist Aleksander Madry is exiting ChatGPT's parent company, OpenAI.

"I want to share that I've decided to leave OpenAI.

Needless to say, this was not an easy decision to make.

I've spent almost three years at OpenAI and, let me tell you, it has been the experience of a lifetime," Madry wrote in a post on X.

Madry joined OpenAI in 2024 as one of the company's top safety executives.