The revelation that ChatGPT, the astonishing artificial-intelligence chatbot, had been trained on an Nvidia supercomputer spurred one of the largest single-day gains in stock-market history. When the Nasdaq opened on May 25, 2023, Nvidia’s value increased by about two hundred billion dollars. A few months earlier, Jensen Huang, Nvidia’s C.E.O., had informed investors that Nvidia had sold similar supercomputers to fifty of America’s hundred largest companies. By the close of trading, Nvidia was the sixth most valuable corporation on earth, worth more than Walmart and ExxonMobil combined. Huang’s business position can be compared to that of Samuel Brannan, the celebrated vender of prospecting supplies in San Francisco in the late eighteen-forties. “There’s a war going on out there in A.I., and Nvidia is the only arms dealer,” one Wall Street analyst said.
Huang is a patient monopolist. He drafted the paperwork for Nvidia with two other people at a Denny’s restaurant in San Jose, California, in 1993, and has run it ever since. At sixty, he is sarcastic and self-deprecating, with a Teddy-bear face and wispy gray hair. Nvidia’s main product is its graphics-processing unit, a circuit board with a powerful microchip at its core. In the beginning, Nvidia sold these G.P.U.s to video gamers, but in 2006 Huang began marketing them to the supercomputing community as well. Then, in 2013, on the basis of promising research from the academic computer-science community, Huang bet Nvidia’s future on artificial intelligence. A.I. had disappointed investors for decades, and Bryan Catanzaro, Nvidia’s lead deep-learning researcher at the time, had doubts. “I didn’t want him to fall into the same trap that the A.I. industry has had in the past,” Catanzaro told me. “But, ten years plus down the road, he was right.”
In the near future, A.I. is projected to generate movies on demand, provide tutelage to children, and teach cars to drive themselves. All of these advances will occur on Nvidia G.P.U.s, and Huang’s stake in the company is now worth more than forty billion dollars.
In September, I met Huang for breakfast at the Denny’s where Nvidia was started. (The C.E.O. of Denny’s was giving him a plaque, and a TV crew was in attendance.) Huang keeps up a semi-comic deadpan patter at all times. Chatting with our waitress, he ordered seven items, including a Super Bird sandwich and a chicken-fried steak. “You know, I used to be a dishwasher here,” he told her. “But I worked hard! Like, really hard. So I got to be a busboy.”
Huang has a practical mind-set, dislikes speculation, and has never read a science-fiction novel. He reasons from first principles about what microchips can do today, then gambles with great conviction on what they will do tomorrow. “I do everything I can not to go out of business,” he said at breakfast. “I do everything I can not to fail.” Huang believes that the basic architecture of digital computing, little changed since it was introduced by I.B.M. in the early nineteen-sixties, is now being reconceptualized. “Deep learning is not an algorithm,” he said recently. “Deep learning is a method. It’s a new way of developing software.” The evening before our breakfast, I’d watched a video in which a robot, running this new kind of software, stared at its hands in seeming recognition, then sorted a collection of colored blocks. The video had given me chills; the obsolescence of my species seemed near. Huang, rolling a pancake around a sausage with his fingers, dismissed my concerns. “I know how it works, so there’s nothing there,” he said. “It’s no different than how microwaves work.” I pressed Huang—an autonomous robot surely presents risks that a microwave oven does not. He responded that he has never worried about the technology, not once. “All it’s doing is processing data,” he said. “There are so many other things to worry about.”
In May, hundreds of industry leaders endorsed a statement that equated the risk of runaway A.I. with that of nuclear war. Huang didn’t sign it. Some economists have observed that the Industrial Revolution led to a relative decline in the global population of horses, and have wondered if A.I. might do the same to humans. “Horses have limited career options,” Huang said. “For example, horses can’t type.” As he finished eating, I expressed my concerns that, someday soon, I would feed my notes from our conversation into an intelligence engine, then watch as it produced structured, superior prose. Huang didn’t dismiss this possibility, but he assured me that I had a few years before my John Henry moment. “It will come for the fiction writers first,” he said. Then he tipped the waitress a thousand dollars, and stood up to accept his award.
Huang was born in Taiwan in 1963, but when he was nine he and his older brother were sent as unaccompanied minors to the U.S. They landed in Tacoma, Washington, to live with an uncle, before being sent to the Oneida Baptist Institute, in Kentucky, which Huang’s uncle believed was a prestigious boarding school. In fact, it was a religious reform academy. Huang was placed with a seventeen-year-old roommate. On their first night together, the older boy lifted his shirt to show Huang the numerous places where he’d been stabbed in fights. “Every student smoked, and I think I was the only boy at the school without a pocketknife,” Huang told me. His roommate was illiterate; in exchange for teaching him to read, Huang said, “he taught me how to bench-press. I ended up doing a hundred pushups every night before bed.”
Although Huang lived at the academy, he was too young to attend its classes, so he went to a nearby public school. There, he befriended Ben Bays, who lived with his five siblings in an old house with no running water. “Most of the kids at the school were children of tobacco farmers,” Bays said, “or just poor kids living in the mouth of the holler.” Huang arrived with the school year already in session, and Bays remembers the principal introducing an undersized Asian immigrant with long hair and heavily accented English. “He was a perfect target,” Bays said.
Huang was relentlessly bullied. “The way you described Chinese people back then was ‘Chinks,’ ” Huang told me, with no apparent emotion. “We were called that every day.” To get to school, Huang had to cross a rickety pedestrian footbridge over a river. “These swinging bridges, they were very high,” Bays said. “It was old planks, and most of them were missing.” Sometimes, when Huang was crossing the bridge, the local boys would grab the ropes and try to dislodge him. “Somehow it never seemed to affect him,” Bays said. “He just shook it off.” By the end of the school year, Bays told me, Huang was leading those same kids on adventures into the woods. Bays recalled how carefully Huang stepped around the missing planks. “Actually, it looked like he was having fun,” he said.
Huang credits his time at Oneida with building resiliency. “Back then, there wasn’t a counsellor to talk to,” he told me. “Back then, you just had to toughen up and move on.” In 2019, he donated a building to the school, and talked fondly of the (now gone) footbridge, neglecting to mention the bullies who had tried to toss him off it.
After a couple of years, Huang’s parents secured entry to the United States, settling in Oregon, and the brothers reunited with them. Huang excelled in high school, and was a nationally ranked table-tennis player. He belonged to the school’s math, computer, and science clubs, skipped two grades, and graduated when he was sixteen. “I did not have a girlfriend,” he said.
Huang attended Oregon State University, where he majored in electrical engineering. His lab partner in his introductory classes was Lori Mills, an earnest, nerdy undergraduate with curly brown hair. “There were, like, two hundred and fifty kids in electrical engineering, and maybe three girls,” Huang told me. Competition broke out among the male undergraduates for Mills’s attention, and Huang felt that he was at a disadvantage. “I was the youngest kid in the class,” he said. “I looked like I was about twelve.”
Every weekend, Huang would call Mills and pester her to do homework with him. “I tried to impress her—not with my looks, of course, but with my strong capability to complete homework,” he said. Mills accepted, and, after six months of homework, Huang worked up the courage to ask her out on a date. She accepted that offer, too.
Following graduation, Huang and Mills found work in Silicon Valley as microchip designers. (“She actually made more than me,” Huang said.) The two got married, and within a few years Mills had left the workforce to bring up their children. By then, Huang was running his own division, and attending graduate school at Stanford by night. He founded Nvidia in 1993, with Chris Malachowsky and Curtis Priem, two veteran microchip designers. Although Huang, then thirty, was younger than Malachowsky and Priem, both felt that he was ready to be C.E.O. “He was a fast learner,” Malachowsky said.
Malachowsky and Priem were looking to design a graphics chip, which they hoped would make competitors, in Priem’s words, “green with envy.” They called their company NVision, until they learned that the name was taken by a manufacturer of toilet paper. Huang suggested Nvidia, riffing on the Latin word invidia, meaning “envy.” He selected the Denny’s as a venue to organize the business because it was quieter than home and had cheap coffee—and also because of his experience working for the restaurant chain in Oregon in the nineteen-eighties. “I find that I think best when I’m under adversity,” Huang said. “My heart rate actually goes down. Anyone who’s dealt with rush hour in a restaurant knows what I’m talking about.”
Huang liked video games and thought that there was a market for better graphics chips. Instead of drawing pixels by hand, artists were starting to assemble three-dimensional polygons out of shapes known as “primitives,” saving time and effort but requiring new chips. Nvidia’s competitors’ primitives used triangles, but Huang and his co-founders decided to use quadrilaterals instead. This was a mistake, and it nearly sank the company: soon after the release of Nvidia’s first product, Microsoft announced that its graphics software would support only triangles.
Short on money, Huang decided that his only hope was to use the conventional triangle approach and try to beat the competition to market. In 1996, he laid off more than half the hundred people working at Nvidia, then bet the company’s remaining funds on a production run of untested microchips that he wasn’t sure would work. “It was fifty-fifty,” Huang told me, “but we were going out of business anyway.”
When the product, known as RIVA 128, hit stores, Nvidia had enough money to meet only one month of payroll. But the gamble paid off, and Nvidia sold a million RIVAs in four months. Huang encouraged his employees to continue shipping products with a sense of desperation, and for years to come he opened staff presentations with the words “Our company is thirty days from going out of business.” The phrase remains the unofficial corporate motto.
At the center of Nvidia’s headquarters, in Santa Clara, are two enormous buildings, each in the shape of a triangle with its corners trimmed. This shape is replicated in miniature throughout the building interiors, from the couches and the carpets to the splash guards in the urinals. Nvidia’s “spaceships,” as employees call the two buildings, are cavernous and filled with light, but eerie, and mostly empty; post-Covid, only about a third of the workforce shows up on any given day. Employee demographics are “diverse,” sort of—I would guess, based on a visual survey of the cafeteria at lunchtime, that about a third of the staff is South Asian, a third is East Asian, and a third is white. The workers are overwhelmingly male.
Even before the run-up in the stock price, employee surveys ranked Nvidia as one of America’s best places to work. Each building has a bar at the top, with regular happy hours, and workers are encouraged to treat their offices as flexible spaces in which to eat, code, and socialize. Nevertheless, the buildings’ interiors are immaculate—Nvidia tracks employees throughout the day with video cameras and A.I. If an employee eats a meal at a conference table, the A.I. can dispatch a janitor within an hour to clean up. At Denny’s, Huang told me to expect a world in which robots would fade into the background, like household appliances. “In the future, everything that moves will be autonomous,” he said.
The only people I saw at Nvidia who didn’t look happy were the quality-control technicians. In windowless laboratories underneath the north-campus bar, pallid young men wearing earplugs and T-shirts pushed Nvidia’s microchips to the brink of failure. The racket was unbearable, a constant whine of high-pitched fans trying to cool overheating silicon circuits. It is these chips which have made the A.I. revolution possible.
In standard computer architecture, a microchip known as a “central processing unit” does most of the work. Coders create programs, and those programs bring mathematical problems to the C.P.U., which produces one solution at a time. For decades, the major manufacturer of C.P.U.s was Intel, and Intel has tried to force Nvidia out of existence several times. “I don’t go anywhere near Intel,” Huang told me, describing their Tom and Jerry relationship. “Whenever they come near us, I pick up my chips and run.”
Nvidia has embraced an alternative approach. In 1999, the company, shortly after going public, introduced a graphics card called GeForce, which Dan Vivoli, the company’s head of marketing, called a “graphics-processing unit.” (“We invented the category so we could be the leader in it,” Vivoli said.) Unlike general-purpose C.P.U.s, the G.P.U. breaks complex mathematical tasks apart into small calculations, then processes them all at once, in a method known as parallel computing. A C.P.U. functions like a delivery truck, dropping off one package at a time; a G.P.U. is more like a fleet of motorcycles spreading across a city.
The GeForce line was a success. Its popularity was driven by the Quake video-game series, which used parallel computing to render monsters that players could shoot with a grenade launcher. (Quake II was released when I was a freshman in college, and cost me years of my life.) The Quake series also featured a “deathmatch” mode for multiplayer combat, and PC gamers, looking to gain an edge, bought new GeForce cards every time they were upgraded. In 2000, Ian Buck, a graduate student studying computer graphics at Stanford, chained thirty-two GeForce cards together to play Quake using eight projectors. “It was the first gaming rig in 8K resolution, and it took up an entire wall,” Buck told me. “It was beautiful.”
Buck wondered if the GeForce cards might be useful for tasks other than launching grenades at his friends. The cards came with a primitive programming tool called a shader. With a grant from DARPA, the Department of Defense’s research arm, Buck hacked the shaders to access the parallel-computing circuits below, repurposing the GeForce into a low-budget supercomputer. Soon, Buck was working for Huang.
Buck is intense and balding, and he radiates intelligence. He is a computer-science hot-rodder who has spent the past twenty years testing the limits of Nvidia chips. Human beings “think linearly. You give instructions to someone on how to get from here to Starbucks, and you give them individual steps,” he said. “You don’t give them instructions on how to get to any Starbucks location from anywhere. It’s just hard to think that way, in parallel.”
Since 2004, Buck has overseen the development of Nvidia’s supercomputing software package, known as CUDA. Huang’s vision was to enable CUDA to work on every GeForce card. “We were democratizing supercomputing,” Huang said.
As Buck developed the software, Nvidia’s hardware team began allocating space on the microchips for supercomputing operations. The chips contained billions of electronic transistors, which routed electricity through labyrinthine circuits to complete calculations at extraordinary speed. Arjun Prabhu, Nvidia’s lead chip engineer, compared microchip design to urban planning, with different zones of the chip dedicated to different tasks. As Tetris players do with falling blocks, Prabhu will sometimes see transistors in his sleep. “I’ve often had it where the best ideas happen on a Friday night, when I’m literally dreaming about it,” Prabhu said.
When CUDA was released, in late 2006, Wall Street reacted with dismay. Huang was bringing supercomputing to the masses, but the masses had shown no indication that they wanted such a thing. “They were spending a fortune on this new chip architecture,” Ben Gilbert, the co-host of “Acquired,” a popular Silicon Valley podcast, said. “They were spending many billions targeting an obscure corner of academic and scientific computing, which was not a large market at the time—certainly less than the billions they were pouring in.” Huang argued that the simple existence of CUDA would enlarge the supercomputing sector. This view was not widely held, and by the end of 2008 Nvidia’s stock price had declined by seventy per cent.
In speeches, Huang has cited a visit to the office of Ting-Wai Chiu, a professor of physics at National Taiwan University, as giving him confidence during this time. Chiu, seeking to simulate the evolution of matter following the Big Bang, had constructed a homemade supercomputer in a laboratory adjacent to his office. Huang arrived to find the lab littered with GeForce boxes and the computer cooled by oscillating desk fans. “Jensen is a visionary,” Chiu told me. “He made my life’s work possible.”
Chiu was the model customer, but there weren’t many like him. Downloads of CUDA hit a peak in 2009, then declined for three years. Board members worried that Nvidia’s depressed stock price would make it a target for corporate raiders. “We did everything we could to protect the company against an activist shareholder who might come in and try to break it up,” Jim Gaither, a longtime board member, told me. Dawn Hudson, a former N.F.L. marketing executive, joined the board in 2013. “It was a distinctly flat, stagnant company,” she said.
In marketing CUDA, Nvidia had sought a range of customers, including stock traders, oil prospectors, and molecular biologists. At one point, the company signed a deal with General Mills to simulate the thermal physics of cooking frozen pizza. One application that Nvidia spent little time thinking about was artificial intelligence. There didn’t seem to be much of a market.
At the beginning of the twenty-tens, A.I. was a neglected discipline. Progress in basic tasks such as image recognition and speech recognition had seen only halting progress. Within this unpopular academic field, an even less popular subfield solved problems using “neural networks”—computing structures inspired by the human brain. Many computer scientists considered neural networks to be discredited. “I was discouraged by my advisers from working on neural nets,” Catanzaro, the deep-learning researcher, told me, “because, at the time, they were considered to be outdated, and they didn’t work.”
Catanzaro described the researchers who continued to work on neural nets as “prophets in the wilderness.” One of those prophets was Geoffrey Hinton, a professor at the University of Toronto. In 2009, Hinton’s research group used Nvidia’s CUDA platform to train a neural network to recognize human speech. He was surprised by the quality of the results, which he presented at a conference later that year. He then reached out to Nvidia. “I sent an e-mail saying, ‘Look, I just told a thousand machine-learning researchers they should go and buy Nvidia cards. Can you send me a free one?’ ” Hinton told me. “They said no.”
Despite the snub, Hinton encouraged his students to use CUDA, including a Ukrainian-born protégé of his named Alex Krizhevsky, who Hinton thought was perhaps the finest programmer he’d ever met. In 2012, Krizhevsky and his research partner, Ilya Sutskever, working on a tight budget, bought two GeForce cards from Amazon. Krizhevsky then began training a visual-recognition neural network on Nvidia’s parallel-computing platform, feeding it millions of images in a single week. “He had the two G.P.U. boards whirring in his bedroom,” Hinton said. “Actually, it was his parents who paid for the quite considerable electricity costs.”
Sutskever and Krizhevsky were astonished by the cards’ capabilities. Earlier that year, researchers at Google had trained a neural net that identified videos of cats, an effort that required some sixteen thousand C.P.U.s. Sutskever and Krizhevsky had produced world-class results with just two Nvidia circuit boards. “G.P.U.s showed up and it felt like a miracle,” Sutskever told me.
AlexNet, the neural network that Krizhevsky trained in his parents’ house, can now be mentioned alongside the Wright Flyer and the Edison bulb. In 2012, Krizhevsky entered AlexNet into the annual ImageNet visual-recognition contest; neural networks were unpopular enough at the time that he was the only contestant to use this technique. AlexNet scored so well in the competition that the organizers initially wondered if Krizhevsky had somehow cheated. “That was a kind of Big Bang moment,” Hinton said. “That was the paradigm shift.”
In the decade since Krizhevsky’s nine-page description of AlexNet’s architecture was published, it has been cited more than a hundred thousand times, making it one of the most important papers in the history of computer science. (AlexNet correctly identified photographs of a scooter, a leopard, and a container ship, among other things.) Krizhevsky pioneered a number of important programming techniques, but his key finding was that a specialized G.P.U. could train neural networks up to a hundred times faster than a general-purpose C.P.U. “To do machine learning without CUDA would have just been too much trouble,” Hinton said.
Within a couple of years, every entrant in the ImageNet competition was using a neural network. By the mid-twenty-tens, neural networks trained on G.P.U.s were identifying images with ninety-six-per-cent accuracy, surpassing humans. Huang’s ten-year crusade to democratize supercomputing had succeeded. “The fact that they can solve computer vision, which is completely unstructured, leads to the question ‘What else can you teach it?’ ” Huang said to me.
The answer seemed to be: everything. Huang concluded that neural networks would revolutionize society, and that he could use CUDA to corner the market on the necessary hardware. He announced that he was once again betting the company. “He sent out an e-mail on Friday evening saying everything is going to deep learning, and that we were no longer a graphics company,” Greg Estes, a vice-president at Nvidia, told me. “By Monday morning, we were an A.I. company. Literally, it was that fast.”
Around the time Huang sent the e-mail, he approached Catanzaro, Nvidia’s leading A.I. researcher, with a thought experiment. “He told me to imagine he’d marched all eight thousand of Nvidia’s employees into the parking lot,” Catanzaro said. “Then he told me I was free to select anyone from the parking lot to join my team.”
Huang rarely gives interviews, and tends to deflect attention from himself. “I don’t really think I’ve done anything special here,” he told me. “It’s mostly my team.” (“He’s irreplaceable,” the board member Jim Gaither told me.) “I’m not sure why I was selected to be the C.E.O.,” Huang said. “I didn’t have any particular drive.” (“He was determined to run a business by the time he was thirty,” his co-founder Chris Malachowsky told me.) “I’m not a great speaker, really, because I’m quite introverted,” Huang said. (“He’s a great entertainer,” his friend Ben Bays told me.) “I only have one superpower—homework,” Huang said. (“He can master any subject over a weekend,” Dwight Diercks, Nvidia’s head of software, said.)
Huang prefers an agile corporate structure, with no fixed divisions or hierarchy. Instead, employees submit a weekly list of the five most important things they are working on. Brevity is encouraged, as Huang surveys these e-mails late into the night. Wandering through Nvidia’s giant campus, he often stops by the desks of junior employees and quizzes them on their work. A visit from Huang can turn a cubicle into an interrogation chamber. “Typically, in Silicon Valley, you can get away with fudging it,” the industry analyst Hans Mosesmann told me. “You can’t do that with Jensen. He will kind of lose his temper.”
Huang communicates to his staff by writing hundreds of e-mails per day, often only a few words long. One executive compared the e-mails to haiku, another to ransom notes. Huang has also developed a set of management aphorisms that he refers to regularly. When scheduling, Huang asks employees to consider “the speed of light.” This does not simply mean to move quickly; rather, employees are to consider the absolute fastest a task could conceivably be accomplished, then work backward toward an achievable goal. They are also encouraged to pursue the “zero-billion-dollar market.” This refers to exploratory products, such as CUDA, which not only do not have competitors but don’t even have obvious customers. (Huang sometimes reminded me of Kevin Costner’s character in “Field of Dreams,” who builds a baseball diamond in the middle of an Iowa cornfield, then waits for players and fans to arrive.)
Perhaps Huang’s most radical belief is that “failure must be shared.” In the early two-thousands, Nvidia shipped a faulty graphics card with a loud, overactive fan. Instead of firing the card’s product managers, Huang arranged a meeting in which the managers presented, to a few hundred people, every decision they had made that led to the fiasco. (Nvidia also distributed to the press a satirical video, starring the product managers, in which the card was repurposed as a leaf blower.) Presenting one’s failures to an audience has become a beloved ritual at Nvidia, but such corporate struggle sessions are not for everyone. “You can kind of see right away who is going to last here and who is not,” Diercks said. “If someone starts getting defensive, I know they’re not going to make it.”
Huang’s employees sometimes complain of his mercurial personality. “It’s really about what’s going on in my brain versus what’s coming out of my mouth,” Huang told me. “When the mismatch is great, then it comes out as anger.” Even when he’s calm, Huang’s intensity can be overwhelming. “Interacting with him is kind of like sticking your finger in the electric socket,” one employee said. Still, Nvidia has high employee retention. Jeff Fisher, who runs the company’s consumer division, was one of the first employees. He’s now extremely wealthy, but he continues to work. “Many of us are financial volunteers at this point,” Fisher said, “but we believe in the mission.” Both of Huang’s children pursued jobs in the hospitality industry when they were in their twenties; following years of paternal browbeating, they now have careers at Nvidia. Catanzaro at one point left for another company. A few years later, he returned. “Jensen is not an easy person to get along with all of the time,” Catanzaro said. “I’ve been afraid of Jensen sometimes, but I also know that he loves me.”
After the success of AlexNet, venture capitalists began shovelling money at A.I. “We’ve been investing in a lot of startups applying deep learning to many areas, and every single one effectively comes in building on Nvidia’s platform,” Marc Andreessen, of the firm Andreessen Horowitz, said in 2016. Around that time, Nvidia delivered its first dedicated A.I. supercomputer, the DGX-1, to a research group at OpenAI. Huang himself took the computer to OpenAI’s offices; Elon Musk, then the chairman, opened the package with a box cutter.
In 2017, researchers at Google introduced a new architecture for neural-net training called a transformer. The following year, researchers at OpenAI used Google’s framework to build the first “generative pre-trained transformer,” or G.P.T. The G.P.T. models were trained on Nvidia supercomputers, absorbing an enormous corpus of text and learning how to make humanlike connections. In late 2022, after several versions, ChatGPT was released to the public.
Since then, Nvidia has been overwhelmed with customer requests. The company’s latest A.I.-training module, known as the DGX H100, is a three-hundred-and-seventy-pound metal box that can cost up to five hundred thousand dollars. It is currently on back order for months. The DGX H100 runs five times as fast as the hardware that trained ChatGPT, and could have trained AlexNet in less than a minute. Nvidia is projected to sell half a million of the devices by the end of the year.
The more processing power one applies to a neural net, the more sophisticated its output becomes. For the most advanced A.I. models, Nvidia sells a rack of dozens of DGX H100s. If that isn’t enough, Nvidia will arrange these computers like library stacks, filling a data center with tens of millions of dollars’ worth of supercomputing equipment. There is no obvious limit to the A.I.’s capabilities. “If you allow yourself to believe that an artificial neuron is like a biological neuron, then it’s like you’re training brains,” Sutskever told me. “They should do everything we can do.” I was initially skeptical of Sutskever’s claim—I hadn’t learned to identify cats by looking at ten million reference images, and I hadn’t learned to write by scanning the complete works of humanity. But the fossil record shows that the nervous system first developed several hundred million years ago, and has been growing more sophisticated ever since. “There have been a lot of living creatures on this earth for a long time that have learned a lot of things,” Catanzaro said, “and a lot of that is written down in physical structures in your brain.”
The latest A.I.s have powers that surprise even their creators, and no one quite knows what they are capable of. (GPT-4, ChatGPT’s successor, can transform a sketch on a napkin into a functioning Web site, and has scored in the eighty-eighth percentile on the LSAT.) In the next few years, Nvidia’s hardware, by accelerating evolution to the speed of a computer-clock cycle, will train all manner of similar A.I. models. Some will manage investment portfolios; some will fly drones. Some will steal your likeness and reproduce it; some will mimic the voices of the dead. Some will act as brains for autonomous robots; some will create genetically tailored drugs. Some will write music; some will write poetry. If we aren’t careful, someday soon, one will outsmart us.
The gross profit margin on Nvidia’s equipment approaches seventy per cent. This ratio attracts competition in the manner that chum attracts sharks. Google and Tesla are developing A.I.-training hardware, as are numerous startups. One of those startups is Cerebras, which makes a “mega-chip” the size of a dinner plate. “They’re just extorting their customers, and nobody will say it out loud,” Cerebras’s C.E.O., Andrew Feldman, said of Nvidia. (Huang countered that a well-trained A.I. model can reduce customers’ overhead in other business lines. “The more you buy, the more you save,” he said.)
Nvidia’s fiercest rival is Advanced Micro Devices. Since 2014, A.M.D. has been run by Lisa Su, another gifted engineer who immigrated to the United States from Taiwan at a young age. In the years since Su became the head of the company, A.M.D.’s stock price has risen thirtyfold, making her second only to Huang as the most successful semiconductor C.E.O. of this era. Su is also Huang’s first cousin once removed.
Huang told me that he didn’t know Su growing up; he met her only after she was named C.E.O. “She’s terrific,” he said. “We’re not very competitive.” (Nvidia employees can recite the relative market share of Nvidia’s and A.M.D.’s graphics cards from memory.) Their personalities are different: Su is reserved and stoic; Huang is temperamental and expressive. “She has a great poker face,” Mosesmann, the industry analyst, said. “Jensen does not, although he’d still find a way to beat you.”
Su likes to tail the incumbent, and wait for it to falter. Unlike Huang, she is not afraid to compete with Intel, and, in the past decade, A.M.D. has captured a large portion of Intel’s C.P.U. business, a feat that analysts once regarded as impossible. Recently, Su has turned her attention to the A.I. market. “Jensen does not want to lose. He’s a driven guy,” Forrest Norrod, the executive overseeing A.M.D.’s effort, said. “But we think we can compete with Nvidia.”
On a gloomy Friday afternoon in September, I drove to an upscale resort overlooking the Pacific to watch Huang be publicly interviewed by Hao Ko, the lead architect of Nvidia’s headquarters. I arrived early to find the two men facing the ocean, engaged in quiet conversation. They were dressed nearly identically, in black leather jackets, black jeans, and black shoes, although Ko was much taller. I was hoping to catch some candid statements about the future of computing; instead, I got a six-minute roast of Ko’s wardrobe. “Look at this guy!” Huang said. “He’s dressed just like me. He’s copying me—which is smart—only his pants have too many pockets.” Ko gave a nervous chuckle, and looked down at his designer jeans, which did have a few more zippered pockets than function would strictly demand. “Simplify, man!” Huang said, before turning to me. “That’s why he’s dressed like me. I taught this guy everything he knows.” (Huang’s wardrobe is widely imitated, and earlier this year he was featured in the Style section of the Times.)
The interview was sponsored by Gensler, one of the world’s leading corporate-design firms, and there were several hundred architects in attendance. As the event approached, Huang increased the intensity of his shtick, cracking a series of weak jokes and rocking back and forth on his feet. Huang does dozens of speaking gigs a year, and had given a talk to a different audience earlier that day, but I realized that he was nervous. “I hate public speaking,” he said.
Onstage, though, he seemed relaxed and confident. He explained that the skylights on the undulating roof of his headquarters were positioned to illuminate the building while blocking direct sunlight. To calculate the design, Huang had strapped Ko into a virtual-reality headset and then attached the headset to a rack of Nvidia G.P.U.s, so that Ko could track the flow of light. “This is the world’s first building that needed a supercomputer to be possible,” Huang said.
Following the interview, Huang took questions from the audience, including one about the potential risks of A.I. “There’s the doomsday A.I.s—the A.I. that somehow jumped out of the computer and consumes tons and tons of information and learns all by itself, reshaping its attitude and sensibility, and starts making decisions on its own, including pressing buttons of all kinds,” Huang said, pantomiming pressing the buttons in the air. The room grew very quiet. “No A.I. should be able to learn without a human in the loop,” he said. One architect asked when A.I. might start to figure things out on its own. “Reasoning capability is two to three years out,” Huang said. A low murmur went through the crowd.
Afterward, I caught up with Ko. Like a lot of Huang’s jokes, the crack about teaching Ko “everything he knows” contained a pointed truth. Ko hadn’t yet made partner at Gensler when Huang chose him for the Nvidia headquarters, bypassing Ko’s boss. I asked Ko why Huang had done so. “You probably have heard stories,” Ko said. “He can be very tough. He will undress you.” Huang had no architecture experience, but he would often tell Ko that he was wrong about the building’s design. “I would say ninety per cent of architects would battle back,” Ko said. “I’m more of a listener.”
Ko recalled Huang challenging Nvidia’s engineering staff on the speed of the V.R. headset. The headset originally took five hours to render design changes; at Huang’s urging, the engineers got the speed down to ten seconds. “He was tough on them, but there was a logic to it,” Ko said. “If the headset took five hours, I’d probably settle on whatever shade of green looked adequate. If it took ten seconds, I’d take the time to pick the best shade of green there was.”
The buildings’ design won several awards and made Ko’s career. Still, Ko recalled his time on the project with mixed emotions. “The place was finished, it looks amazing, we’re doing the tour, and he’s questioning me about the placement of the water fountains,” Ko said. “He was upset because they were next to the bathrooms! That’s required by code, and this is a billion-dollar building! But he just couldn’t let it go.”
“I’m never satisfied,” Huang told me. “No matter what it is, I only see imperfections.”
I asked Huang if he was taking any gambles today that resemble the one he took twenty years ago. He responded immediately with a single word: “Omniverse.” Inspired by the V.R.-architecture gambit, the Omniverse is Nvidia’s attempt to simulate the real world at an extraordinary level of fine-grained detail. Huang has described it as an “industrial metaverse.”
Since 2018, Nvidia’s graphics cards have featured “ray-tracing,” which simulates the way that light bounces off objects to create photorealistic effects. Inside a triangle of frosted glass in Nvidia’s executive meeting center, a product-demo specialist showed me a three-dimensional rendering of a gleaming Japanese ramen shop. As the demo cycled through different points of view, light reflected off the metal counter and steam rose from a bubbling pot of broth. There was nothing to indicate that it wasn’t real.
The specialist then showed me “Diane,” a hyper-realistic digital avatar that speaks five languages. A powerful generative A.I. had studied millions of videos of people to create a composite entity. It was the imperfections that were most affecting—Diane had blackheads on her nose and trace hairs on her upper lip. The only clue that Diane wasn’t truly human was an uncanny shimmer in the whites of her eyes. “We’re working on that,” the specialist said.
Huang’s vision is to unify Nvidia’s computer-graphics research with its generative-A.I. research. As he sees it, image-generation A.I.s will soon be so sophisticated that they will be able to render three-dimensional, inhabitable worlds and populate them with realistic-seeming people. At the same time, language-processing A.I.s will be able to interpret voice commands immediately. (“The programming language of the future will be ‘human,’ ” Huang has said.) Once the technologies are united with ray-tracing, users will be able to speak whole universes into existence. Huang hopes to use such “digital twins” of our own world to safely train robots and self-driving cars. Combined with V.R. technology, the Omniverse could also allow users to inhabit bespoke realities.
I felt dizzy leaving the product demo. I thought of science fiction; I thought of the Book of Genesis. I sat on a triangular couch with the corners trimmed, and struggled to imagine the future that my daughter will inhabit. Nvidia executives were building the Manhattan Project of computer science, but when I questioned them about the wisdom of creating superhuman intelligence they looked at me as if I were questioning the utility of the washing machine. I had wondered aloud if an A.I. might someday kill someone. “Eh, electricity kills people every year,” Catanzaro said. I wondered if it might eliminate art. “It will make art better!” Diercks said. “It will make you much better at your job.” I wondered if someday soon an A.I. might become self-aware. “In order for you to be a creature, you have to be conscious. You have to have some knowledge of self, right?” Huang said. “I don’t know where that could happen.” ♦
