Mira Murati has departed OpenAI, where she had been the chief technology officer since 2018. In a note shared with the company and then posted publicly on X, Murati said that she is exiting "because I want to create the time and space to do my own exploration."

Murati gained additional visibility as a face for the AI company when she briefly assumed CEO duties in November 2023 when the board of directors fired Sam Altman. Altman returned to the helm and Murati resumed work as CTO. However, her departure follows on two other notable exits. Last month, president and co–founder Greg Brockman and co-founder John Schulman both announced that they would be stepping away from OpenAI. Brockman is taking a sabbatical and Schulman is moving to rival AI firm Anthropic.

Here is the full text of Murati's statement:

Hi all,

I have something to share with you. After much reflection, I have made the difficult decision to leave OpenAl.

My six-and-a-half years with the OpenAl team have been an extraordinary privilege. While I’ll express my gratitude to many individuals in the coming days, I want to start by thanking Sam and Greg for their trust in me to lead the technical organization and for their support throughout the years.

There’s never an ideal time to step away from a place one cherishes, yet this moment feels right. Our recent releases of speech-to-speech and OpenAl o1 mark the beginning of a new era in interaction and intelligence - achievements made possible by your ingenuity and craftsmanship. We didn’t merely build smarter models, we fundamentally changed how Al systems learn and reason through complex problems.

We brought safety research from the theoretical realm into practical applications, creating models that are more robust, aligned, and steerable than ever before. Our work has made cutting-edge Al research intuitive and accessible, developing technology that adapts and evolves based on everyone’s input. This success is a testament to our outstanding teamwork, and it is because of your brilliance, your dedication, and your commitment that OpenAl stands at the pinnacle of Al innovation.

I’m stepping away because I want to create the time and space to do my own exploration. For now, my primary focus is doing everything in my power to ensure a smooth transition, maintaining the momentum we’ve built.

I will forever be grateful for the opportunity to build and work alongside this remarkable team. Together, we’ve pushed the boundaries of scientific understanding in our quest to improve human well-being. While I may no longer be in the trenches with you, I will still be rooting for you all.

With deep gratitude for the friendships forged, the triumphs achieved, and most importantly, the challenges overcome together.

Mira

In a post on X, Altman has revealed that the company's Chief Research Officer, Bob McGrew, and VP of Research, Barret Zoph, are also leaving the company. He said they made the decisions "independently of each other and amicably," but it made sense to "do this all at once" for a smooth handover. OpenAI's leadership will go through some changes as a result, with Mark Chen, the Head of Frontiers Research, being named as Research SVP. Research Scientist Josh Achiam has been named as Head of Mission Alignment, while Mark Knight, the Head of Security, is now the Chief Information Security Officer. 

Update, September 26, 2024, 7:03AM ET: This post has been updated to include information about the other staffers leaving OpenAI.