Growing warnings about an AI debt bomb building up across the tech sector

[Scarlett]

A wave of recent reporting has converged on the same uncomfortable theme this year, that the amount of debt fueling the AI buildout has grown large enough that some analysts and even lawmakers are openly comparing the risk to the run up before the 2008 financial crisis. The core numbers keep getting bigger every time someone updates the count.

Goldman Sachs estimated back in July that roughly 489 billion dollars in AI related debt had already been issued in 2026 alone, blowing past the bank's own earlier full year projection with months still left on the calendar. Separately, a Nikkei analysis found that five leading US hyperscalers are carrying more than 1.6 trillion dollars in debt that doesn't show up cleanly on their balance sheets, tucked instead into footnotes covering things like long term GPU purchase commitments and data center lease agreements.

The concern isn't just the raw size of the numbers, it's the structure underneath them. A large chunk of this debt is flowing through private credit markets rather than traditional bank lending, which was exactly the kind of opaque, interconnected financing that made the 2008 crisis so hard to contain once it started unraveling. Senator Elizabeth Warren and several colleagues sent a formal letter to the Financial Stability Oversight Council back in January pushing for a proper investigation into whether AI companies could actually generate enough revenue to service all this borrowing before some of it comes due.

What makes this particularly uncertain is that nobody actually knows where the ceiling is. AI infrastructure spending keeps climbing even as growth in paying usage shows signs of leveling off in places, and the entire bet rests on revenue eventually catching up to the capital being poured into chips and data centers today

An AI 'debt bomb' crisis? No. This isn't Enron 2.0 | Gene Markswww.theguardian.com

[Ronaldo]

1.6 trillion in hidden off balance sheet debt is the number that should worry people more than the visible bond issuance figures. Footnote financing is exactly the kind of thing that blindsided everyone in 2008 too