Loading...
OpenAI sees another top-level exit as COO Brad Lightcap leaves
Lightcap joined OpenAI in 2018

OpenAI sees another top-level exit as COO Brad Lightcap leaves

Aug 12, 2026
09:32 am

What's the story

Brad Lightcap, one of the longest-serving executives at OpenAI, has announced his departure from the company. In an internal message shared online on Tuesday, he said it was "bittersweet" to announce that he will be leaving OpenAI to "start something new." Lightcap joined the AI lab in 2018 and has held several key positions including CFO and COO.

Career trajectory

Lightcap's previous roles at OpenAI

Before his departure, Lightcap was leading special projects at OpenAI. He had previously worked with CEO Sam Altman at venture capital firm Y Combinator.

In his farewell message, he reflected on building various teams such as Finance, Legal, People, CorpSec, and GTM/Gov Partnerships, among others during his time at the company.

"Among the most rewarding parts of this journey for me has been watching each of these teams mature under brilliant leaders," he wrote.

Leadership changes

Major executive changes at OpenAI

Lightcap's exit comes as OpenAI prepares for an industry-shaping IPO and undergoes a major executive shakeup.

In July, Fidji Simo, the company's No. 2 executive who led AGI development, announced her decision to step down.

Other executives such as Bill Peebles and Kevin Weil have also recently left the company from less central areas of its operations.

ADVERTISEMENT

Farewell message

Lightcap reflects on his time at OpenAI

In his farewell message, Lightcap reflected on his nearly decade-long tenure at OpenAI.

"I feel incredibly fortunate to have spent most of the last decade pursuing our mission and building this company," he wrote.

"Sitting here today, mission success feels within sight. It has been the honor of my life to help bring us to this point, and to do it alongside all of you."

ADVERTISEMENT