Gary Marcus Warns OpenAI Could Become a 'WeWork of AI' and Nvidia May Suffer

what happened

Gary Marcus, NYU Professor Emeritus, says OpenAI's ambitions and delayed IPO plans raise doubts about how sustainable the artificial intelligence boom is. In an interview with CNBC, he warned that growing skepticism toward generative AI, rising financing costs and uncertainty over returns on investment could expose weak points across the ecosystem. He said OpenAI could become a cautionary tale for the industry, with wider consequences for Nvidia.

Marcus compared OpenAI to WeWork, which never completed its public listing, and pointed to repeatedly postponed IPO plans as a warning sign. He also raised the possibility that OpenAI might have to sell at a discount, for example to Microsoft, if it cannot sustain its current valuation. He called Nvidia 'very well run' with great chips, but questioned whether demand is unlimited and whether buyers can turn a profit. He named neocloud companies, which depend on outside funding that is getting more expensive, as the most vulnerable. Marcus also cited a Bank of England study of about 10,000 decision-makers that, in his view, showed limited productivity gains so far.

According to Stocktwits, during the Friday after-hours session the SPY ETF gained 0.17%, the QQQ rose 0.21% and the DIA edged up 0.06%. The AIQ ETF rose 1.32% on Friday, while IYW gained 1.31%.

why it matters

A prominent AI skeptic's comments mainly move investor sentiment rather than hard data. Questions about how AI infrastructure is financed and whether huge spending will pay off matter for markets, so Nvidia and tech indexes can react to assessments like this.

market impact

Nvidia and the AI sector: doubts about financing and demand weigh on investor sentiment

• ▼Nvidia pressure down — concern that customers may fail to earn back AI chip spending and demand could weaken
• ▼Nasdaq 100 pressure down — risks to the AI boom could hit large tech stocks that depend on it

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