The artificial intelligence boom faces an acute structural risk because its financial foundations rely heavily on just two companies, according to former Neuberger Berman senior portfolio manager Steve Eisman. Speaking on CNBC’s “Fast Money,” Eisman warned that the entire capital expenditure cycle in tech is essentially a wager on the uninterrupted success of OpenAI and Anthropic.
OpenAI and Anthropic Drive High-Stakes Tech Spending
The extraordinary capital spending underpinning the current AI infrastructure depends directly on the fortunes of these two key artificial intelligence developers. “The futures of these massive companies, in a sense, are a bet that OpenAI, Anthropic are going to succeed,” Eisman stated on CNBC.
Cheap Chinese Open-Source Models Threaten Profit Margins
According to Eisman, the primary revenue threat to the current AI infrastructure boom stems from international competition, specifically cheaper open-source models emerging from China. “The Achilles’ heel of this whole story … is if something bad happens to Anthropic and OpenAI … the Chinese open-end models, open-weight models are much cheaper,” Eisman explained on CNBC. If these lower-cost alternatives capture significant market share, it could trigger a destructive pricing war across the sector.
Michael Burry Questions AI Demand and Shorts Nvidia
Adding to the skepticism, “The Big Short” investor Michael Burry has taken an even more bearish stance on the artificial intelligence landscape. According to CNBC, Burry has questioned whether actual end-customer demand justifies current spending, arguing instead that a significant portion of AI demand is financed through circular financial arrangements. Backing up his skepticism, Burry has placed direct bearish bets against major industry beneficiaries, including Nvidia and the broader semiconductor sector.

Frequently Asked Questions
Who is warning about the reliance on OpenAI and Anthropic?
Steve Eisman, host of “The Real Eisman Playbook” podcast and former Neuberger Berman senior portfolio manager, warned on CNBC that the AI boom depends on these two companies.
What is the biggest revenue threat to the AI boom according to Eisman?
Eisman stated on CNBC that cheaper Chinese open-source and open-weight AI models taking market share and triggering a price war represent the primary revenue threat.

Which other prominent investor is skeptical of the AI market?
Michael Burry, known for wagering against the housing bubble, has taken a bearish view, questioning AI demand and shorting Nvidia and other semiconductor stocks, according to CNBC.
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