Barret Zoph, OpenAI’s head of enterprise AI sales, has departed the company after just five months back on the job, The Verge has learned. OpenAI confirmed the departure. Zoph posted a goodbye message in the company’s Slack channels.
This is Zoph’s second exit from OpenAI. He originally left in the fall of 2024 to become co-founder and CTO of Thinking Machines Lab, the competing AI company started by former OpenAI CTO Mira Murati. He returned to OpenAI in mid-January 2026 — then left again in June.
🔍 THE BOTTOM LINE: OpenAI’s enterprise business — the revenue engine it’s counting on for its IPO — just lost its sales lead for the second time in two years. The talent carousel at the top of the AI industry is no longer a curiosity. It’s a structural risk.
What Changed
Zoph’s January return was part of a trio. Luke Metz and Sam Schoenholz also came back from Thinking Machines Lab at the same time. Fidji Simo, OpenAI’s CEO of Applications, wrote on X that the decision had “been in the works for several weeks” and that she was “excited to welcome” all three back.
Zoph was given a critical role: leading OpenAI’s push into enterprise sales. This matters because OpenAI has explicitly said it would stop chasing “side quests” and focus on key revenue drivers like enterprise and coding ahead of its planned IPO. The enterprise business is the financial story investors will scrutinise.
Now that lead is gone, five months in.
The Murati Connection
The backstory is tangled. Murati briefly served as OpenAI’s CEO during Sam Altman’s November 2023 ouster — the five-day saga that is now being made into a film (recently dropped by Amazon MGM, as we covered earlier). During the recent OpenAI trial, Murati testified that she “couldn’t trust everything Altman said.”
When Murati left OpenAI in September 2024 to start Thinking Machines Lab, a group of OpenAI employees followed. Zoph was among them. Then in January 2026, Zoph departed Thinking Machines Lab abruptly after reports of alleged misconduct involving an undisclosed relationship with a colleague. Murati posted on X that the lab had “parted ways” with Zoph.
Zoph then returned to OpenAI — the company Murati had left to compete against. Now he’s left OpenAI again.
Why This Matters for the IPO
OpenAI’s financial position is precarious. The company lost $38.5 billion in 2025, according to audited financials that leaked ahead of its IPO filing. Enterprise revenue is the path to credibility with investors — recurring contracts with Fortune 500 companies are worth more to the IPO narrative than consumer subscriptions.
Losing the person leading that push, five months into the role, is not a routine personnel change. It’s a signal. OpenAI has been bleeding senior talent for over a year — Noam Shazeer defected to OpenAI from Google (a gain), but the broader pattern is people cycling through the company and out again, sometimes twice.
NZ Angle
New Zealand enterprises watching the AI vendor landscape should pay attention to personnel stability, not just product capabilities. When the head of enterprise sales at your AI provider changes every five months, the relationships that underpin your enterprise contract — pricing negotiations, support escalation, roadmap input — reset from zero. Kiwi CIOs evaluating OpenAI against Anthropic or Google should factor talent retention into vendor risk assessments. A company that can’t keep its own sales leadership is a company whose enterprise roadmap commitments carry extra uncertainty.
The Other Side
Zoph’s departure could be entirely personal — the details of his exit from Thinking Machines Lab suggest a complicated professional situation that may not translate cleanly to a new role. OpenAI is a large organisation with multiple enterprise leaders, and one person’s departure doesn’t dismantle the sales function. The company has also been actively recruiting from competitors, so the talent flow is not one-directional.
OpenAI confirmed the departure without elaboration, which is standard for personnel matters. Zoph did not respond to a request for comment from The Verge.
The Bigger Picture
The AI industry’s talent churn problem is now impossible to ignore. The same names circulate through the same companies — OpenAI, Anthropic, Thinking Machines Lab, Google DeepMind — with increasingly short tenures. John Jumper just left DeepMind for Anthropic. Shazeer went from Google to Character.AI back to Google to OpenAI. Zoph has now been at OpenAI, Thinking Machines Lab, and OpenAI again in under two years.
This is not a healthy labour market. It’s a game of musical chairs where the chairs are worth billions and the music stops every few months. For an industry building systems that will supposedly transform the global economy, the inability to retain the people building those systems is a contradiction worth noting.
❓ FAQ
Who is Barret Zoph? Barret Zoph was OpenAI’s head of enterprise AI sales. He previously left OpenAI in 2024 to co-found Thinking Machines Lab with former OpenAI CTO Mira Murati, returned to OpenAI in January 2026, and departed again in June 2026.
Why does this matter for OpenAI’s IPO? OpenAI has said it is focusing on enterprise revenue as a key IPO driver, after reporting $38.5 billion in losses for 2025. Losing the sales lead for that enterprise push five months into the role raises questions about revenue trajectory stability.
What is Thinking Machines Lab? Thinking Machines Lab is an AI company founded by Mira Murati, OpenAI’s former CTO, in September 2024. Zoph was co-founder and CTO before departing in January 2026 after reports of alleged misconduct.
Is this part of a broader pattern? Yes. The AI industry has seen repeated senior talent departures and returns across major labs — OpenAI, Anthropic, Google DeepMind, and Thinking Machines Lab. John Jumper left DeepMind for Anthropic, Noam Shazeer moved from Google to OpenAI, and Zoph has now cycled through two companies twice in two years.
🔍 THE BOTTOM LINE: OpenAI’s enterprise sales lead is out after five months — his second departure from the company. The AI industry’s talent churn is no longer a curiosity but a structural risk, especially for a company trying to convince IPO investors that its revenue engine is stable.
