New Delhi, Nov. 1 -- Major tech giants - Alphabet, Meta, Microsoft and Amazon - have made it through earnings season, and they sent a unified message to Wall Street: Artificial intelligence investments are increasing, and it will only get bigger in the near future.

These four tech giants have lifted their guidance for capital expenditures and now collectively project that number to exceed $380 billion this year as they race to build out infrastructure for the "virtually limitless demand" for AI services.

The sheer scale of these spending projections is notable, as they are even dwarfing OpenAI, which has recently announced roughly $1 trillion worth of infrastructure deals with partners including Nvidia, Oracle and Broadcom.

However, th...