SAN FRANCISCO, July 25 — The glass-and-steel Pioneer Building in the Mission District still hums with the low thrum of servers, but the organization inside has transformed almost beyond recognition. OpenAI began in a founder’s living room, a handful of engineers and researchers who believed artificial general intelligence could — and should — benefit all of humanity. Nearly eleven years later, that same mission statement hangs on a wall somewhere, but the company’s structure, its leadership, and its legal battles tell a far messier story.
Founded in December 2015 as a nonprofit by Elon Musk, Sam Altman, Ilya Sutskever, Greg Brockman, Trevor Blackwell, Vicki Cheung, Andrej Karpathy, Durk Kingma, John Schulman, Pamela Vagata, and Wojciech Zaremba, OpenAI set out with $1 billion in capital pledges from Musk, Altman, Brockman, Reid Hoffman, Jessica Livingston, Peter Thiel, Amazon Web Services, and Infosys. By 2021, tax filings showed only $133.2 million had actually been received.
The gap between promise and delivery would prove prophetic.
From Living Room to Global Stage
The early days were cramped. Brockman’s living room doubled as headquarters. Then came the Pioneer Building.
In 2019, a for-profit subsidiary was created, and by 2025 a restructuring turned that subsidiary into a public benefit corporation — a structure where the nonprofit retains a 26% ownership stake. That same year, the company’s valuation hit $500 billion after a $6.6 billion share sale in October.
Microsoft has poured in over $13 billion and provides Azure cloud computing resources that power the sprawling compute clusters needed to train the GPT series of large language models. The release of ChatGPT in November 2022 cracked the AI boom wide open. Suddenly, generative AI was not a lab curiosity; it was a product used by millions.
But success came with a reckoning. Throughout 2023 and 2024, a wave of copyright infringement lawsuits hit from authors and media companies whose work had been used to train the models.
The lawsuits are ongoing.
Boardroom Coup and Safety Exodus
Then came the shock of November 2023. The board removed Altman as CEO, citing a loss of confidence. Five days later, after a board reconstruction, he was back.
The episode rattled employees and investors alike. By the end of 2024, roughly half of the AI safety researchers then employed had left, citing that safety goals were being deprioritized.
The founding promise of open collaboration — once central to the organization’s identity — had given way to restricted access to the most capable models. Behind the headlines, the numbers tell a story of relentless scaling. Altman remains at the helm, and the company’s core mission — ensuring AGI “benefits all of humanity” — is still the stated north star.
Whether the for-profit PBC structure and the growing list of lawsuits can coexist with that original vision is the question hanging over San Francisco’s Mission District as the summer of 2026 wears on. The next act in this drama is already being written; the only certainty is that it will not be quiet.
