A Nikkei Asia report estimates that five major US technology companies—Alphabet, Microsoft, Amazon, Meta, and Oracle—accumulate about $1.65 trillion in “invisible” or hidden AI-related debt, according to coverage summarized by multiple outlets. The figure is described as rising eightfold over roughly four years, growing far faster than what companies’ official disclosures would suggest. The reporting frames the gap as a form of off-balance-sheet obligation linked to opaque funding structures used for AI projects. While each company’s published financial statements show comparatively smaller, more clearly reported amounts, the Nikkei analysis argues that additional commitments or liabilities tied to AI spending are not fully reflected in those official figures. The outlets also note that the estimated hidden amount is larger than a lower comparison figure cited in the original reporting (about $1.35 trillion), suggesting a continued upward trend. Separate from the debate over accounting definitions, all coverage centers on the same set of firms and the same estimate range, attributing the change mainly to the scale and structure of AI investment.