Cloud giants capex 2026 plans reach $590 billion to $600 billion

Cloud giants capex 2026 plans now add up to roughly $590 billion to $600 billion after Amazon raised its expected cash capital spending to about $220 billion and Alphabet increased its guidance to $195 billion to $205 billion. Microsoft expects about $175 billion in calendar-2026 capex, a figure affected by a change in how it classifies future data-center leases.

The arithmetic is attention-grabbing, but it is not a clean measure of AI investment. Amazon’s number is cash capex across its businesses, with the company saying most will support AI and AWS. Alphabet’s range covers the whole company. Microsoft’s estimate includes the effect of moving more future data-center leases from finance leases to operating leases, according to CFO Amy Hood.

Amazon had previously expected approximately $200 billion in 2026 cash capex. CEO Andy Jassy said higher memory costs led it to lift that forecast by about $20 billion. Alphabet raised its range from $180 billion to $190 billion, with CFO Anat Ashkenazi saying the revision reflects faster delivery of capacity to meet demand.

Why are cloud giants raising capex in 2026?

The companies point to demand for cloud and AI computing capacity, though those claims are their own assessments rather than an independent measure of unmet demand. Jassy told analysts Amazon would still not have enough capacity to serve all demand in 2026, and he expects that condition to continue into 2027. Ashkenazi said Alphabet’s demand was exceeding its capacity investment and characterized the industry as supply-constrained.

Reported cloud results provide the commercial context, without proving why each company chose its spending level. AWS recorded $42.2 billion of second-quarter revenue, up 36.7% from a year earlier. Google Cloud reported $24.8 billion, up 82%. Microsoft reported $59.3 billion in commercial-cloud revenue, up 27%, while Azure and other cloud services grew 43%.

Independent estimates show a market growing fast enough to make the infrastructure race consequential. Synergy Research Group estimated enterprise spending on cloud infrastructure services reached $143.4 billion in the second quarter, up 43% year over year, with trailing 12-month revenue at $500 billion. Synergy said generative AI was the primary driver of the accelerated growth and estimated shares of 28% for Amazon, 20% for Microsoft and 15% for Google.

The spending plans also carry visible cost consequences. Ashkenazi said Alphabet’s expanded technical infrastructure investment would increase depreciation and data-center operating costs, including energy. Microsoft said its $175 billion estimate does not reflect a smaller planned build-out; it reflects the revised lease treatment.

For operators buying compute, the immediate signal is continued build-out rather than a disclosed easing in supply. The more durable caveat is financial: a $590 billion to $600 billion combined range is directional, because the three disclosures do not cover identical spending categories or use identical accounting treatment.

This story draws on original reporting from The Register.