Person
Greg Brockman
Greg Brockman is a co-founder of OpenAI and its president, and for much of the company's history its most senior engineer, closely involved in building the systems behind GPT and ChatGPT. He was removed alongside Sam Altman in the November 2023 board crisis and returned with him days later. After a period of leave in 2024 he resumed a central role, and remained a public face of the company's technical work through its later model and hardware launches. He is among the small group of founders who have stayed with OpenAI throughout its transformation from research lab to product company.
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- Labs & people 8
- Courts & copyright 6
- Models & capabilities 3
- Government & policy 2
- Money & business 2
- Benchmarks & progress 2
- Compute & infrastructure 1
- Culture & impact 1
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OpenAI unveils Jalapeno, its first AI inference chip, with Broadcom
Broadcom's chief executive said early samples cut inference cost roughly 50% against typical GPUs, a self-reported figure with no disclosed comparison baseline.
Compute & infrastructure
OpenAI-linked super PAC admits running false-flag 'doomer' accounts calling for violence
Build American AI acknowledged an outside vendor ran the accounts after reporters linked them to staff at Leading the Future, the pro-AI super PAC funded partly by OpenAI's president.
Government & policy · Culture & impact
Jury dismisses Musk's lawsuit against OpenAI and Altman
The jury took under two hours to decide Musk's claims fell outside a three-year statute of limitations, without ruling on whether the alleged breach of trust actually occurred.
Courts & copyright · Labs & people
Musk v Altman/OpenAI trial begins
Musk sought as much as $134bn in damages to be paid to OpenAI's charity, plus Altman's removal from the board, in a case tried before a nine-member advisory jury in Oakland.
Courts & copyright · Money & business · Labs & people
Musk drops most claims against OpenAI and Altman ahead of trial
Musk narrowed his suit from 26 claims to two — unjust enrichment and breach of charitable trust — after Judge Gonzalez Rogers granted his request to streamline the case.
Courts & copyright
OpenAI releases GPT-5.5
Pitched as OpenAI's most agentic model yet, it shipped alongside a $50,000 bug-bounty for jailbreaks that could extract biological-weapons help.
Models & capabilities
Unsealed filing details OpenAI's account of the Musk restructuring dispute
The filing said Musk had sought majority equity control and roughly $80bn for a self-sustaining Mars city; Altman posted the claim publicly on X the same day.
Courts & copyright · Labs & people
OpenAI reasoning system wins gold at IOI 2025
The system scored 533 against a gold cutoff of 438, ranking sixth among 330 human contestants — up from the 49th percentile OpenAI managed at the same contest a year earlier.
Benchmarks & progress · Models & capabilities
OpenAI board's review concludes, Altman and Brockman to continue leading OpenAI
WilmerHale's inquiry found Altman's November 2023 removal was not about safety, security, finances or statements to investors, and three new directors joined the board.
Labs & people
OpenAI responds to Elon Musk's lawsuit over its founding mission
OpenAI said Musk had contributed $45 million rather than the $1 billion he pledged, and published emails in which he proposed merging OpenAI into Tesla or taking full control.
Courts & copyright · Labs & people
Musk sues OpenAI over its for-profit turn
The complaint alleged a founding pact to develop AGI 'for the benefit of humanity' had been broken for Microsoft's profit; OpenAI said no such agreement existed.
Courts & copyright · Labs & people
Sam Altman returns as CEO with a new initial board
The three-person interim board — Bret Taylor, Larry Summers and Adam D'Angelo, the only holdover from the board that fired him — replaced the four who had voted him out.
Labs & people
OpenAI's board fires Sam Altman, and reinstates him five days later
The board cited a loss of confidence but gave no detail; around 700 of roughly 770 employees threatened to resign, and the board itself was replaced.
Labs & people · Money & business
OpenAI publishes 'Governance of superintelligence'
Altman, Brockman and Sutskever predicted AI would exceed expert skill 'in most domains' within a decade and called an outright pause unenforceable.
Ideas & essays · Government & policy
OpenAI releases GPT-4
A multimodal model that passed professional exams near the top of the human range — and whose technical report disclosed no architecture, data or compute.
Models & capabilities · Benchmarks & progress