Will Amazon or Alphabet Better Digest AI Capex This Quarter?

Alex Sirois

Mon, August 31, 2026 at 3:36 PM GMT+3 4 min read

Quick Read

AWS grew 37% to $42B at a 39% margin while Google Cloud surged 82%, yet both AMZN and GOOGL reported negative free cash flow.
Alphabet doubled long-term debt to $98B and suspended buybacks to fund AI capex, while Amazon self-funds from $45B in quarterly operating cash flow.
Jassy said AWS servers break even in under three years, while Alphabet's TPU revenue mostly arrives in 2027 as interest expense has already surged 5x.
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Amazon (NASDAQ: AMZN) and Alphabet (NASDAQ: GOOGL) both posted Q2 FY2026 results dominated by one question: can their cloud businesses monetize AI infrastructure fast enough to justify record capex? Each saw cloud growth accelerate. Each reported negative free cash flow. The funding paths, backlog quality, and margin cushions, though, look very different.

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AWS Prints Cash While Google Cloud Sprints

AWS revenue hit $42.2 billion, growing 36.7% year-over-year, its fastest growth in 18 quarters. Operating income landed at $16.6 billion on a 39% margin, expanded 650 basis points year over year. That is a profit pool absorbing a lot of concrete.

Google Cloud grew faster on a smaller base. Revenue reached $24.8 billion, up 82%, with operating income of $8.8 billion and margin expansion to 35.6% from 20.7% a year earlier. Sundar Pichai said "Cloud revenue grew 82% powered by strong demand for AI infrastructure and AI solutions and Cloud backlog grew to $514 billion."

Business Driver

Amazon

Alphabet

Q2 Capex

$53.1B cash

$44.9B

Cloud Backlog

$496B

$514B

Cloud Op Margin

39%

35.6%

Self-Funded Build vs. Debt-Fueled Sprint

Amazon is paying for the AI buildout with its own engine. Q2 operating cash flow hit $45.39B, and Andy Jassy pointed to a chips business at over $25 billion in annualized revenue with triple-digit percentages year over year growth. Trainium is anchored by multi-gigawatt commitments from Anthropic and OpenAI, and most capacity is contracted for at least five-year terms.

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Alphabet raised the ante. Full-year 2026 capex guidance jumped to $195 billion to $205 billion, up from $180 billion to $190 billion. To fund it, the company raised roughly $70 billion in combined equity and debt, suspended its buyback, and grew long-term debt from $46.5 billion to $98.2 billion. CFO Anat Ashkenazi conceded Google remains "supply-constrained" and will lean on third-party capacity as a bridge, which she warned will "put some pressure on operating margins for Cloud in the near term."

Break-Even Speed Is the Next Test

Jassy framed the payoff clearly: servers reach break-even in a little less than three years, and data centers carry 30-plus year useful lives. I will watch whether AWS can hold that 39% margin as memory and SSD costs climb. For Alphabet, TPU system revenue only started contributing in Q2 and the vast majority arrives in 2027. Interest expense is already up nearly 5x year-over-year, so timing matters.

Why I Lean Toward Amazon on Capex Digestion

For me, Amazon looks better equipped to absorb this cycle. AWS is throwing off $16.6B quarterly profit against a $220B CapEx load, and the shares already reflect confidence, up 17.55% in one month. Alphabet, at a 17 P/E with a suspended buyback and swelling debt, looks cheaper for a reason. Investors seeking more torque tied to TPU monetization in 2027 will focus on Alphabet, while those prioritizing a self-funded compounder will focus on Amazon. All of that capex still has to be powered and cooled by somebody, and we rounded up seven suppliers doing exactly that in a free report on the AI infrastructure buildout.