Moody's says the surge in artificial intelligence spending is becoming a credit risk for some of the biggest technology companies, including Amazon, Meta and Alphabet. According to the report highlighted by CNBC, the race to build AI infrastructure is so costly that even cash-rich corporations may see pressure on their credit quality.

The concern centers on the scale of investment needed for AI. Building out the computing power, data center capacity and related infrastructure for the AI boom appears to require unusually large amounts of capital. Moody's described the spending as unprecedented, underscoring how quickly the financial demands of the AI race are growing.

Moody's said that these companies may increasingly rely on debt, stock sales and off-balance-sheet financing to support their AI buildout. That matters because heavier use of outside financing can weaken balance sheets and raise questions about future credit strength, even for companies that have historically been seen as financially solid.

The warning reflects a broader shift in how Wall Street and ratings agencies are evaluating the AI boom. While investors have rewarded major tech groups for moving aggressively into artificial intelligence, Moody's is signaling that the cost of staying competitive in AI could create new financial strain for Amazon, Meta, Alphabet and other large players in the sector.