OpenAI CEO Sam Altman thinks the artificial intelligence market is in a bubble, according to a report from The Verge published Friday.
“When bubbles happen, smart people get overexcited about a kernel of truth,” Altman told a small group of reporters last week.
“Are we in a phase where investors as a whole are overexcited about AI? My opinion is yes. Is AI the most important thing to happen in a very long time? My opinion is also yes,” he was quoted as saying.
Altman appeared to compare this dynamic to the infamous dot-com bubble, a stock market crash centered on internet-based companies that led to massive investor enthusiasm during the late 1990s. Between March 2000 and October 2002, the Nasdaq lost nearly 80% of its value after many of these companies failed to generate revenue or profits.
His comments add to growing concern among experts and analysts that investment in AI is moving too fast. Alibaba co-founder Joe Tsai, Bridgewater Associates’ Ray Dalio and Apollo Global Management chief economist Torsten Slok have all raised similar warnings.
Last month, Slok stated in a report that he believed the AI bubble of today was, in fact, bigger than the internet bubble, with the top 10 companies in the S&P 500 more overvalued than they were in the 1990s.
In an email to CNBC on Monday, Ray Wang, CEO of Silicon Valley-based Constellation Research, told CNBC that he thought Altman’s comments carry some validity, but that the risks are company-dependent.
“From the perspective of broader investment in AI and semiconductors… I don’t see it as a bubble. The fundamentals across the supply chain remain strong, and the long-term trajectory of the AI trend supports continued investment,” he said.
However, he added that there is an increasing amount of speculative capital chasing companies with weaker fundamentals and only perceived potential, which could create pockets of overvaluation.
Many Fears of an AI bubble had hit a fever pitch at the start of this year when Chinese start-up DeepSeek released a competitive reasoning model. The company claimed one version of its advanced large language models had been trained for under $6 million, a fraction of the billions being spent by U.S. AI market leaders like OpenAI, though these claims were also been met with some skepticism.
Earlier this month, Altman told CNBC that OpenAI’s annual recurring revenue is on track to pass $20 billion this year, but that despite that, it remains unprofitable.
The release of OpenAI’s latest GPT-5 AI model earlier this month had also been rocky, with some critics complaining that it had a less intuitive feel. This resulted in the company restoring access to legacy GPT-4 models for paying customers.
Following the release of the model, Altman has also signaled more caution about some of the AI industry’s more bullish predictions.
Speaking to CNBC, he said that he thought the term artificial general intelligence, or “AGI,” is losing relevance, when asked whether the GPT-5 model moves the world any closer to achieving AGI.
AGI refers to the concept of a form of artificial intelligence that can perform any intellectual task that a human can — something that OpenAI has been working towards for years and that Altman previously said could be achieved in the “reasonably close-ish future.“
Regardless, faith in OpenAI from investors has remained strong this year. CNBC confirmed Friday that the company was preparing to sell around $6 billion in stock as part of a secondary sale that would value it at roughly $500 billion.
In March, it had announced a $40 billion funding round at a $300 billion valuation, by far the largest amount ever raised by a private tech company.
In The Verge article on Friday, the OpenAI CEO also discussed OpenAI’s expansion into consumer hardware, brain-computer interfaces and social media.
Altman also said that he expects OpenAI to spend trillions of dollars on its data center buildout in the “not very distant future,” and signaled that the company would be interested in buying Chrome if the U.S. government were to force Google to sell it.
Asked if he would be CEO of OpenAI in a few years, he was quoted as saying, “I mean, maybe an AI is in three years. That’s a long time.”
Waymo self-driving cars with roof-mounted sensor arrays traveling near palm trees and modern buildings along the Embarcadero, San Francisco, California, February 21, 2025.
Smith Collection/gado | Archive Photos | Getty Images
Alphabet‘s Waymo is bringing its driverless ride-hailing services to London, the first European market for its robotaxi.
The company said in a release on Wednesday that it plans to start test drives on London’s roads in coming months, with human safety specialists at the wheel. It intends to open its robotaxi service next year, assuming it can get permissions from regulators as well as local and national leaders.
London will mark the company’s second international city after Tokyo, where testing began in early 2025.
Waymo has been aggressively expanding in the U.S., and now offers a commercial service in the Los Angeles area, Phoenix, San Francisco, Atlanta and Austin, Texas. The company has also announced plans to start robotaxi services in Miami and Washington, D.C., and said in August that it obtained permits to begin testing its autonomous vehicles with trained safety drivers on board in New York City.
In London, Waymo’s fleet will be comprised of Jaguar iPACE electric vehicles equipped with the company’s Waymo Driver autonomous systems. Waymo said it already employs engineering teams in Oxford and London, and that it plans to work with Moove to handle operations and maintenance for its fleet.
Moove provides vehicle financing to drivers who want to purchase a new vehicle for ride-hailing, and offers services like cleaning, some repairs and charging of electric vehicles to transportation businesses including Waymo and Uber, which is an investor in the startup.
In June, the U.K. announced an accelerated framework for commercial pilots by AV ventures, an effort to bring self-driving investments to the region. London also established a “Vision Zero” goal earlier this year to eliminate all serious injuries and deaths in its transportation systems by 2041.
Waymo says its system “is involved in five times fewer injury-causing collisions, and twelve times fewer injury-causing collisions with pedestrians compared to humans,” according to the company’s analysis of its own data.
The company has also reported that its self-driving vehicles have logged 100 million “fully autonomous miles” on public roads, and provided more than 10 million paid rides to passengers to-date.
Waymo is part of Alphabet’s “Other Bets” segment, which brought in revenue of $373 million in the second quarter on a loss of $1.25 billion. Alphabet plans to report third-quarter results on Oct. 29.
Wayve, a U.K.-based startup backed by SoftBank and Microsoft, previously announced that it plans to bring a robotaxi commercial pilot to London next year. While Waymo uses radar, lidar and other sophisticated sensors in its vehicles, Wayve is developing camera-based systems, an approach that’s similar to Tesla’s pursuits.
— CNBC’s Jennifer Elias contributed to this report.
A Pony.ai AION robot taxi is displayed during the 21st Shanghai International Automobile Industry Exhibition at the National Exhibition and Convention Center in Shanghai on April 23, 2025.
Wang Zhao | Afp | Getty Images
Autonomous driving firms Pony.ai and WeRide have received approval from China’s securities regulator for secondary listings in Hong Kong, as the companies look to raise funds and continue their global expansion.
The China Securities Regulatory Commission announced Tuesday that both companies had filed to issue and list shares in Hong Kong. Chinese companies seeking a foreign listing are required to file an application with the CSRC in advance, giving the regulators final say on whether the company can go public overseas.
Pony.ai and WeRide, which are already listed in the United States, can issue about 102 million new shares each for their Hong Kong listings.
WeRide has tapped Morgan Stanley and China International Capital Corporation to work on the listing, according to a Reuters report. Neither WeRide nor Pony.ai immediately responded to CNBC’s inquiry on their IPO plans.
Pony.ai CEO James Peng had told CNBC in July that the company was exploring a Hong Kong listing. Hong Kong would offer “close proximity” to the company’s home market of China, which is something that would interest a lot of investors, Peng said.
Pony.ai and WeRide, both headquartered in Guangzhou, are amongst a growing wave of Chinese companies seeking secondary listings in Hong Kong, in what has been a bounce-back year for the city’s IPO market.
The Chinese companies’ move to dual list also comes as they expand their presence to new regions, including the Middle East, Europe and Asian countries such as Singapore, although they have yet to receive full approvals to operate their robotaxis in most of those regions.
In the U.S., both companies have partnered with Uber, with hopes of deploying their robotaxis on the firm’s ride-hailing platform after receiving approval. In China, they have already begun operating fully autonomous robotaxis in major cities, which can be hailed via their respective apps.
The companies have smaller autonomous vehicle fleets when compared to more established players such as Baidu‘s Apollo Go in China and Alphabet‘s Waymo in the U.S.
Pony.ai launched its IPO in November with shares priced at $13 apiece — the stock has gained more than 60% since. WeRide debuted on the Nasdaq, with the IPO priced at $15.50 a share in October 2024, and its stock has lost over 30% so far.
U.S. President Donald Trump gestures during a meeting with President of Argentina Javier Milei in the Cabinet Room at the White House on Oct. 14, 2025 in Washington, DC.
Kevin Dietsch | Getty Images
U.S. stocks had a rocky day of trading, swinging from highs to lows like the quality of Game of Thrones across its eight seasons.
At its lowest during the session, the S&P 500 fell as much as 1.5%, but recovered and traded positively for most of the day after U.S. Trade Representative Jamieson Greer hinted that China’s next trade move could influence how President Donald Trump’s tariffs are implemented.
The optimism in markets fizzled, however, when Trump said he was considering “terminating business with China having to do with Cooking Oil” and other forms of punitive measures, citing Beijing’s halt of U.S. soybean purchases since May. Investors seemed to take that threat seriously, sending the S&P 500 down 0.2% for the day.
Developments elsewhere, however, were more encouraging. Federal Reserve Chair Jerome Powell suggested that the central bank might stop tightening monetary policy concerning its bond holdings. Meanwhile, major banks — bellwethers for economic activity — such as JPMorgan Chase, Citi and Goldman Sachs, beat earnings expectations, suggesting that the economy’s fundamentals remain intact.
And while Oracle’s pivot to AMD’s artificial intelligence chips — a move away from Nvidia graphics processing units — may not thrill Jensen Huang, it reduces concentration risk and strengthens the case for investors banking on AI to continue the market rally.
Still, Trump’s rhetoric overshadowed everything else. The question, then, is whether his trade brinkmanship will derail the AI-fueled market — or if the Magnificent Seven kingdom will stand.
Prices in China fall more than expected in September. The consumer price index declined 0.3% from a year earlier, steeper than the 0.2% drop forecast by economists. However, core CPI rose 1% year on year, the highest since February 2024, according to Wind Information.
ChatGPT will soon allow ‘erotica’ for adults. OpenAI CEO Sam Altman announced the major policy shift Tuesday, saying that it’s part of the company’s “treat adult users like adults” principle. The company previously prohibited most adult content on its chatbot.
U.S. stocks were mixed. On Tuesday, the S&P 500 and Nasdaq Composite fell but recovered from session lows. The Dow Jones Industrial Average, however, closed in the green. Asia-Pacific markets traded higher Wednesday. South Korea’s Kospi index jumped more than 2.5%.
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NEW YORK, NY – FEBRUARY 09: Chinese Consul General in New York Huang Ping (C) and his wife Zhang Aiping participate in a closing bell ceremony to celebrate the Chinese New Year, the Year of the Dragon, on February 8, 2024 in New York City.
Chinese initial public offerings in the U.S. have slumped 4% year on year in terms of deal value so far this year, raising just $875.7 million from 23 deals. Meanwhile, Chinese IPOs in Hong Kong this year have surged 164% year on year, raising $18.4 billion from 56 listings, Dealogic data showed.
One major snarl for Chinese companies interested in U.S. listings is Beijing’s tight control of the IPO process. A growing number of U.S.-listed Chinese companies are also looking at Hong Kong amid rising delisting risks in the U.S., a trend that’s giving an extra boost to the city’s sizzling market.