Barret Zoph Out at OpenAI After Five Months. The Company's Executive Roster Keeps Churning Ahead of IPO.

Since OpenAI's ongoing IPO preparations began drawing scrutiny this spring, the company's leadership lineup has shifted repeatedly. As of June 19, it shifted again.

Barret Zoph is leaving OpenAI, according to The Verge, which confirmed the departure directly with the company. Zoph posted a goodbye message in OpenAI's internal Slack channels. He did not respond to a request for comment.

A short, complicated run

Zoph returned to OpenAI in mid-January 2026 after a turbulent stint at Thinking Machines Lab, the AI startup founded by former OpenAI CTO Mira Murati. He had originally left OpenAI in fall 2024 to co-found the company and serve as its CTO. In January 2026, Thinking Machines Lab said it had "parted ways" with Zoph following reports of alleged misconduct involving an undisclosed relationship with a colleague. Murati announced the departure on X.

Within weeks of leaving Thinking Machines Lab, Zoph was back at OpenAI alongside two other returning employees, Luke Metz and Sam Schoenholz. Fidji Simo, OpenAI's CEO of Applications, welcomed all three back publicly on X. OpenAI installed Zoph as head of enterprise AI sales, a role the company described as central to its strategy since it had explicitly committed to cutting "side quests" and concentrating on enterprise and coding revenue ahead of its IPO.

He lasted five months in that role.

The hire-fire-rehire-depart cycle

OpenAI is a company going public, and rotating a senior executive out of its core revenue function months before that IPO presents a legitimate concern for prospective shareholders. Enterprise sales relationships take time to build. Zoph's departure leaves a gap in a division OpenAI itself said was a top priority.

OpenAI has shown it can attract top talent. Shazeer and Ball are the latest examples. But attraction and retention are different problems, and the Zoph situation is the third visible leadership disruption in this news cycle alone, following Shazeer's arrival from Google and Ball's announced start date of July 6.

OpenAI has not named a replacement for Zoph as of June 19.

The incoming names

While Zoph exits, OpenAI is adding two significant figures.

Noam Shazeer, a co-lead on Google's Gemini model and co-author of the 2017 "Attention Is All You Need" paper that introduced the Transformer architecture, announced his departure from Google last week. Google had rehired him two years ago in a $2.7 billion deal that folded his AI role-playing startup Character AI's technology into the company. According to TechCrunch, Shazeer had also drawn management friction at Google for posts on internal message boards about transgender identity and Israel's war in Gaza, with management deleting his comments, per reporting by The Information. His specific role at OpenAI has not been publicly announced.

Dean Ball, a former White House AI policy official in the Trump administration, announced on X that he will join OpenAI on July 6 as leader of a new team called Strategic Futures. Ball had helped publish America's AI Action Plan before leaving the White House to return to the Foundation for American Innovation as a senior fellow. He will report directly to Chief Strategy Officer Jason Kwon.

Ball described the Strategic Futures mandate in a blog post as covering "catastrophic risk, recursive self-improvement, labor market impact, and the relationship between the frontier labs, governments (particularly the U.S. Federal Government), and society." He also noted that AI labs will, "almost by necessity," have to lead on AI governance decisions internally, a recognition that Washington has not filled that vacuum.

What the Murati connection means

The Zoph departure reactivates a complicated relationship. Mira Murati briefly served as OpenAI's interim CEO during Sam Altman's November 2023 board ouster. During the recent OpenAI trial, according to The Verge, Murati testified she "couldn't trust everything Altman said." Thinking Machines Lab remains a direct competitor. Zoph bounced between the two organizations inside of 18 months and is now out of both. This reflects the volatility running through the top tier of the AI industry, not just OpenAI specifically.

The unresolved question

OpenAI's IPO timeline has not been publicly fixed to a specific date. But the company is visibly shaping its leadership and policy infrastructure for that moment. It is adding Shazeer for technical credibility, Ball for Washington credibility, and losing Zoph from the enterprise revenue seat. Whether a replacement enterprise head is named before the IPO filing, and who that person is, will tell investors more about OpenAI's actual readiness to execute on the revenue strategy it has been promising than any press release will.