Alphabet Plans $75 Billion Capex for AI Infrastructure to Support Advertising Growth

Alphabet has announced a $75 billion capital expenditure for 2025, marking a 45% increase from the previous year. This investment focuses on data center construction, AI computing hardware, and network infrastructure. Approximately 30-40% of the capex will be allocated to hardware like Tensor Processing Units and NVIDIA GPUs. While much of the spending aims to enhance advertising, portions will support Google Cloud and Waymo. Investors are concerned about the returns on this significant investment, especially the incremental benefits of AI improvements on advertising revenues.

Published Mar 23, 2026

Alphabet has announced a $75 billion capital expenditure plan for 2025, a 45% increase from the previous year, aimed at enhancing its AI infrastructure. This investment is primarily focused on data center construction and AI hardware, including Google’s Tensor Processing Units and NVIDIA GPUs, which constitute 30-40% of the capex.

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The funding is intended to support advertising revenue growth through AI Overviews and Google Cloud, which generates substantial infrastructure demands. However, the investment also fuels non-advertising sectors like Waymo and DeepMind, complicating the ROI analysis. Investor sentiment is mixed as concerns grow over the timeline for expected returns amidst rising infrastructure costs.