In a dramatic turn of events late Friday, ex-Y Combinator president Sam Altman was fired as CEO of AI startup OpenAI, the company behind viral AI hits like ChatGPT, GPT-4 and DALL-E 3, by OpenAI’s board of directors. Then, the company’s longtime president and co-founder, Greg Brockman, resigned — as did three senior OpenAI researchers. And the fallout continues.

It’s a fast-moving situation that we’re still trying to get to the bottom of. No doubt more will become clear as time goes on. To make it easier to follow all that’s happened in the meantime, though, we’ve put together a timeline; we’ll do our best to keep it current.

Timeline of Sam Altman’s firing from OpenAI

November 21

Altman and board in talks

OpenAI’s board of directors is reportedly in talks with Sam Altman, ex-Y Combinator president and an OpenAI co-founder, to return to OpenAI as CEO as soon as this week. That’s according to Bloomberg, which in a brief — citing sources close to the matter — said that discussions are happening between Quora CEO Adam D’Angelo, one current member of the OpenAI board, and Altman — and possibly other board members as well.

Board tensions boil over

The New York Times reports that, before his ousting, Sam Altman made a move to push out board member Helen Toner because he thought a paper she had co-written was overly critical of OpenAI. That, among other issues, led to OpenAI’s current predicament. Speaking of, The Times indicates that negotiations to hire Altman back continue — but that one major sticking point remaining is “guardrails” meant to improve Altman’s communication with the board.

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November 20

Altman joins Microsoft

Sam Altman, Greg Brockman and colleagues announce that they’ll join Microsoft to lead a new AI research team. Nadella leaves the door open to other OpenAI staffers, saying that they’ll be given the resources they need should they choose to join.

Sutskever’s mea culpa

Sutskever publishes a post on X suggesting that he regrets his decision to remove Altman and that he’ll do everything in his power to reinstate Altman as CEO.

Employees threaten to resign

Nearly 500 of OpenAI’s roughly 770 employees — including, remarkably, Sutskever — publish a letter saying that they might quit unless the startup’s board resigns and reappoints the ousted Altman. Later Monday, that number climbed to over 650.

Altman and Brockman considering return

As reported by The Verge, Altman’s move to Microsoft isn’t a done deal — and both Altman and Brockman are still open to returning to OpenAI. That is, if the remaining board members who initially fired him step aside.

OpenAI board considers merger

OpenAI’s board of directors approached Dario Amodei, the co-founder and CEO of rival large-language model developer Anthropic, about a potential merger of the two companies, The Information reports. The approach was part of an effort by OpenAI to persuade Amodei to replace Altman as CEO — but Amodei quickly turned down the CEO offer.

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November 19

Altman to meet at OpenAI HQ

According to The Information, Altman is expected to meet at OpenAI’s San Francisco headquarters as executives at OpenAI push to have him reinstated as CEO. Brockman was invited to join — but it’s unclear whether he’ll take execs up on that invitation.

Board negotiations hit a snag

Bloomberg reports that Lightcap and Murati, among others, are pushing the board to reinstate Altman. But unsurprisingly, the directors are resisting. As of midday Sunday, the board hadn’t resigned out of concern over who could replace them, and were vetting candidates. One possible new addition could be Salesforce co-CEO Bret Taylor.

Altman out, Shear in

Altman won’t be returning as CEO, according to a report in The Information citing an internal memo sent by Sutskever. As the search for a new permanent CEO continues, OpenAI has appointed Emmett Shear, the co-founder of video streaming site Twitch, as interim CEO — replacing Murati.

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November 18

“Not … in response to malfeasance”

In an internal memo obtained by Axios sent Saturday morning, OpenAI COO Brad Lightcap said yesterday’s announcement “took [the management team] by surprise” and that management had had “multiple conversations with the board to try to better understand the reasons and process behind their decision.” Discussions were ongoing as of Saturday morning, per the memo.

“We can say definitively that the board’s decision was not made in response to malfeasance or anything related to our financial, business, safety, or security/privacy practices,” Lightcap added. “This was a breakdown in communication between Sam and the board … We still share your concerns about how the process has been handled, are working to resolve the situation, and will provide updates as we’re able.”

OpenAI’s funding in jeopardy

The planned sale of OpenAI employee shares that would value the startup at about $86 billion could be in jeopardy. The Information, speaking to three sources formerly with the company, reports that they no longer expect the sale — led by Thrive Capital — to happen, or, if it does, to come with a lesser valuation because of the recent turn of events.

Altman planning new venture

Altman has been telling investors that he’s planning to launch a new venture, according to The Information. Brockman is expected to join the effort — whatever form it takes. (Possibly an AI chip startup.)

Investors pushing for Altman’s return

Investors — furious at the turn of events — are reportedly exerting pressure on OpenAI’s board to reinstate Altman, going so far as to recruit Microsoft. Nadella is said to be sympathetic.

Board agrees to reverse course — in principle

The Verge reports that the board agreed in principle to resign and to allow Altman and Brockman to return. It waffled, however, missing a deadline yesterday by which many OpenAI staffers were set to leave the company. Altman is said to be ambivalent about coming back and asking for “significant” governance changes.

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November 17

Brockman demoted

Brockman says he got a text from Sutskever shortly after noon on Friday asking for a quick call. After sending a Google Meet link, Brockman was told that he was being removed from the board as chairman “but was vital to the company and would retain his role” as president, and that Altman had been fired.

Altman’s firing publicly announced

OpenAI published a post on its blog announcing the executive shake-up. The company’s management team was aware shortly after.

All-hands meeting

OpenAI held an all-hands meeting Friday afternoon during which Sutskever defended Altman’s ouster. He dismissed suggestions that pushing Altman out amounted to a “hostile takeover,” and claimed that it was necessary to protect OpenAI’s mission of “making AI beneficial to humanity.”

Microsoft releases a statement

Satya Nadella, the CEO of Microsoft, a major investor in — and partner with — OpenAI, published a statement about Altman’s firing:

Brockman quits

Brockman announced his resignation from OpenAI, citing “today’s news.” After sending a memo internally, he published the text on X.

Senior OpenAI researchers resign

Three senior OpenAI researchers resign after Brockman, including the director of research Jakub Pachocki and head of preparedness Aleksander Madry.

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November 16

Ilya Sutskever schedules call with Altman

According to a post on X (formerly Twitter) from Brockman, Ilya Sutskever, the chief scientist at OpenAI and a co-founder, texted Altman on Thursday evening about scheduling a Friday noon call.

Murati told of Altman’s firing

Brockman alleges that Mira Murati, OpenAI’s CTO and now interim CEO, was informed on Thursday night that Altman would be fired.