Big Tech's $600 billion AI spending spree faces scrutiny as Alphabet, Microsoft, Meta, and Amazon report earnings, with Bitcoin miners also pivoting to AI.

Alphabet, Microsoft and Amazon will report earnings over the next two weeks as investors look for evidence that AI spend is paying off

Big Tech's $600 billion AI spending spree faces scrutiny as Alphabet, Microsoft, Meta, and Amazon report earnings, with Bitcoin miners also pivoting to AI.