AI's never-before-seen capital grab

AxiosSeptember 24, 2026en

A new analysis of the AI buildout shows its staggering scale: $10.3 trillion in estimated AI infrastructure investment through 2032. That amounts to 3.6% of GDP a year, dwarfing the investment booms that built America's railroads , highways, electric grid and telecom networks. Why it matters: The AI boom has become far too big and too costly for even the largest tech companies to finance alone. This has resulted in trillions of dollars in demand for outside capital — and the potential risks that come along with that, according to new research being presented Friday at the Brookings Papers on Economic Activity. Financing the buildout will require tapping bond markets, banks and private credit

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