Big Tech's 2026 AI Capex Plans Reach as High as $725 Billion

Microsoft, Amazon, Alphabet, and Meta have collectively raised their 2026 capital expenditure plans to as much as $725 billion, according to Bloomberg, with nearly all of that spending directed at AI data center infrastructure. The four hyperscalers issued fresh guidance in their spring earnings cycle, and three of the four raised their full-year forecasts from earlier estimates.

The Details

Bloomberg reported on April 30 that the combined capital expenditure plans of the biggest US tech firms now stand as high as $725 billion for 2026, with AI data center equipment as the primary driver. A separate tally by Fortune using lower-end guidance assumptions put the same group's aggregate spend at up to $665 billion — underscoring that the aggregate figure is a range-based estimate tied to company guidance rather than a settled audited number.

Microsoft said it expects 2026 capital expenditures to reach approximately $190 billion, according to The Register. That figure includes roughly $25 billion attributable to higher component pricing. The Register reported that Microsoft spent around $32 billion in the March quarter alone and said it expected to remain capacity constrained through the end of the year.

Alphabet raised its 2026 capex guidance to a range of $180 billion to $190 billion, according to Business Insider. Meta lifted its full-year guidance to between $125 billion and $145 billion, with the high-end figure confirmed by 24/7 Wall St. Amazon held its 2026 capex expectation steady at $200 billion, making it the only one of the four hyperscalers not to revise its full-year forecast upward, Bloomberg reported.

The executives behind each company's plan offered direct defenses of the scale of spending. Microsoft CFO Amy Hood said, "We remain confident in the return on these investments." Amazon CEO Andy Jassy pointed to firm demand, saying, "We have high confidence this will be monetized well, as we already have customer commitments for a substantial portion of it." Meta CEO Mark Zuckerberg attributed part of his company's higher guidance to component costs, stating: "Most of that is due to higher component costs, particularly memory pricing, but every sign that we're seeing in our own work and across the industry gives us confidence in this investment."

Business Insider noted that Google's cloud platform carried a $462 billion backlog as of the latest earnings period, and that compute capacity constraints had prevented the division from capturing additional revenue it could otherwise have booked. That detail reinforces why Alphabet raised guidance rather than held it flat — demand, according to the company's own earnings disclosures, is outpacing the infrastructure currently in place.

Context

The scale of the 2026 capex commitments reflects the accelerating build-out of AI compute infrastructure that has been under way since the commercial launch of large language models in 2023. Each of the four companies has been expanding data center capacity across multiple continents, and the guidance figures disclosed this earnings cycle represent a step-up from projections issued as recently as late 2025.

Amazon's decision to hold its forecast flat at $200 billion — rather than raise it — is notable given the scale of its March-quarter spending, which Bloomberg said was large enough to reduce the company's free cash flow. Jassy's comments on customer commitments suggest Amazon is not backing away from the trajectory; the company is simply not revising a figure it had already set at the high end of the group.

The gap between Bloomberg's $725 billion aggregate and Fortune's $665 billion estimate reflects the range inherent in guidance-based math. When companies provide a high-end and a low-end capex range for the year — as Alphabet and Meta both did — different outlets aggregate differently depending on whether they use midpoints, low ends, or high ends. Neither total should be treated as a confirmed audited figure.

What's Next

All four companies will continue reporting quarterly capital expenditure figures through 2026, which will allow analysts to track whether actual spending tracks the high-end guidance or settles toward the midpoint of each company's stated range. Microsoft indicated it expects to remain capacity constrained through the year, according to The Register, which suggests its spending pace is unlikely to slow materially in upcoming quarters.

Business Insider's report on Google's $462 billion cloud backlog points to persistent demand pressure on Alphabet's infrastructure build. If that backlog continues to grow faster than new capacity comes online, Alphabet may face further guidance revisions before year end.