Sam Altman, chief executive officer of OpenAI, during a fireside chat at University College London (UCL) in London, UK, on Wednesday, May 24, 2023. Altman said part of the reason for his current tour of European cities is to discover a suitable location for a new office. ALTMAN RETURNS: OpenAI brings back former CEO, establishes new board days after ouster. EGG ON FACE: OpenAI board's days numbered as $90B company plunges into chaos. NO OVERSIGHT: Tech CEO's ouster demonstrates need for better regulation.

Over five chaotic days that transfixed Silicon Valley and beyond, the world's leading artificial intelligence company, OpenAI, appeared to be on the verge of imploding in a power struggle. The maker of ChatGPT, the sensational chatbot, had a mission to safely develop smarter-than-human AI. But that mission looked in jeopardy on Friday when OpenAI's non-profit board of directors fired Altman, suggesting he had been dishonest in his communications with them. To many spectators, the future of not just AI but also humanity hung in the balance. Finally late on Tuesday night, after three CEO changes and a full-court press by Microsoft, the board gave Altman his old job back.

"OpenAI is nothing without its people" was posted on X by many workers, including Mira Murati who was at the time the interim CEO. There were also lots of coloured hearts being shared. The whole thing had the vibes of last year's big Silicon Valley meltdown: the shake-up at Twitter (now X) following Elon Musk's takeover. Laid-off Twitter staff sent a coded message then too: the emoji giving a salute.

As Sam Altman looks to steer OpenAI through choppy waters following the turmoil of his ouster and return as chief executive, he will be working with an initial board of directors consisting of two new faces--and one holdover from the previous board that fired him. The two joiners are seasoned tech veteran Bret Taylor, who was formerly co-CEO of Salesforce and chairman of Twitter, and Larry Summers, the onetime Treasury secretary and Harvard University president whose appointment surprised some observers. Remaining on the board is Adam D'Angelo, a former Facebook executive and the founder of the question-and-answer website Quora, a potential sign that Altman may not have everything his own way after his dramatic reinstatement late Tuesday.

Back in the 1990s, anyone suggesting that we'd need to adapt to climate change while also cutting emissions was met with suspicion. Most climate change researchers felt adaptation studies would distract from the vital work of keeping pollution out of the atmosphere to begin with. Despite this hostile environment, a handful of experts were already sowing the seeds for a new field of research called "climate change adaptation": study and policy on how the world could prepare for and adapt to the new disasters and dangers brought forth on a warming planet. Today, their research is more important than ever. Take a moment out of your day to appreciate these truly remarkable rivers.

Though a revered tactician and chooser of promising start-ups, Altman had developed a reputation for favoring personal priorities over official duties and for an absenteeism that rankled his peers and some of the start-ups he was supposed to nurture, said two of the people, as well as an additional person, all of whom spoke on the condition of anonymity to candidly describe private deliberations. The largest of those priorities was his intense focus on growing OpenAI, which he saw as his life's mission, one person said.

On a Friday morning in October, in the lobby of a sleek San Francisco skyscraper, Matthew Butterick was headed toward the elevators when a security guard stopped him. Politely, the guard asked if he was lost. It was an honest mistake. He looked more like the type of guy who makes fun of the typical corporate warrior. He explained, equally politely, that he was in fact a lawyer with a legitimate reason to be in the building. His co-counsel, Joseph Saveri, leads an antitrust and class-action firm headquartered there.

Stable Diffusion's generative art can now be animated, developer Stability AI announced. The company has released a new product called Stable Video Diffusion into a research preview, allowing users to create video from a single image. "This state-of-the-art generative AI video model represents a significant step in our journey toward creating models for everyone of every type," the company wrote. The new tool has been released in the form of two image-to-video models, each capable of generating 14 to 25 frames long at speeds between 3 and 30 frames per second at 576 1024 resolution. "At the time of release in their foundational form, through external evaluation, we have found these models surpass the leading closed models in user preference studies," the company said, comparing it to text-to-video platforms Runway and Pika Labs. Stable Video Diffusion is available only for research purposes at this point, not real-world or commercial applications.

OpenAI has been hit with another lawsuit, accusing it of using other people's intellectual property without permission to train its generative AI technology. Only this time, the lawsuit also names Microsoft as a defendant. The complaint was filed by Julian Sancton on behalf of a group of non-fiction authors who said they were not compensated for the use of their books and academic journals in training the company's large language model. In their lawsuit, the authors state how they spend years "conceiving, researching, and writing their creations." They accuse OpenAI and Microsoft of refusing to pay authors while building a business "valued into the tens of billions of dollars by taking the combined works of humanity without permission."

In November 2022, OpenAI launched ChatGPT, a consumer-facing artificial intelligence tool that could hold a conversation with users, answer questions, and generate anything from poems to computer code to health advice. The initial technology was not perfect – it would sometimes "hallucinate", producing convincing but inaccurate information – but its potential generated enormous attention. A year later, ChatGPT's popularity has continued, with 100 million people using it on a weekly basis, and over 92% of Fortune 500 companies and several competitor firms looking to cash in or improve on the technology. But that's not why ChatGPT's creator, OpenAI, was in the news this week. Instead, OpenAI was the center of a fierce philosophical debate about what it means to develop artificial general intelligence for the benefit of humanity. To understand the current debate and its stakes requires going back to OpenAI's founding in December 2015.