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The $448B AI Spending Surge by Big Tech
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Key Takeaways
- Big Tech AI capex nearly tripled from $162B in 2022 to $448B in 2025.
- By late 2025, these companies were spending over $140B per quarter combined.
- Microsoft, Amazon, and Alphabet account for the largest share of the increase.
Big Tech is pouring hundreds of billions into AI infrastructure as competition to scale models and cloud capacity intensifies.
This chart is part of Visual Capitalist’s AI Week, sponsored by Terzo. It shows quarterly capital expenditures for five hyperscalers—Alphabet, Amazon, Meta, Microsoft, and Oracle—based on data from Epoch AI, using SEC filings from Q1 2022 to Q4 2025.
Spending accelerated sharply after mid-2023, reflecting a shift from experimentation to full-scale deployment of data centers, chips, and AI-ready cloud infrastructure.
The Big Tech Arms Race for AI
Big Tech’s capex surge signals an all-out infrastructure arms race, where scale in compute, data centers, and chips is becoming the defining advantage in AI.
Across Alphabet, Amazon, Meta, Microsoft, and Oracle, combined capex rose from $162.3 billion in 2022 to $448.3 billion in 2025.
The data below shows a quarterly capex proxy for selected hyperscalers between 2022 and 2025.
| Quarter | Microsoft (AI capex, $B) |
Amazon (AI capex, $B) |
Alphabet (AI capex, $B) |
Meta (AI capex, $B) |
Oracle (AI capex, $B) |
|---|---|---|---|---|---|
| 2022 Q1 | 6.1 | 15.1 | 9.8 | 5.6 | 1.1 |
| 2022 Q2 | 8.0 | 15.8 | 6.8 | 7.6 | 1.4 |
| 2022 Q3 | 6.9 | 16.5 | 7.3 | 9.4 | 1.7 |
| 2022 Q4 | 6.9 | 16.9 | 7.6 | 9.4 | 2.4 |
| 2023 Q1 | 7.7 | 14.2 | 6.3 | 7.1 | 2.6 |
| 2023 Q2 | 9.8 | 11.7 | 6.9 | 6.4 | 1.9 |
| 2023 Q3 | 11.6 | 12.7 | 8.1 | 6.5 | 1.3 |
| 2023 Q4 | 11.5 | 14.8 | 11.0 | 8.1 | 1.1 |
| 2024 Q1 | 14.4 | 15.0 | 12.0 | 6.5 | 1.7 |
| 2024 Q2 | 18.6 | 17.8 | 13.2 | 8.4 | 2.8 |
| 2024 Q3 | 19.3 | 22.8 | 13.1 | 8.8 | 2.3 |
| 2024 Q4 | 22.2 | 28.3 | 14.6 | 14.7 | 4.0 |
| 2025 Q1 | 20.0 | 25.1 | 17.7 | 13.7 | 5.9 |
| 2025 Q2 | 23.6 | 33.1 | 22.5 | 17.1 | 11.1 |
| 2025 Q3 | 28.5 | 36.1 | 24.3 | 19.3 | 9.6 |
| 2025 Q4 | 36.2 | 40.5 | 28.5 | 22.5 | 13.0 |
The inflection point came in mid-2023, when AI spending shifted from gradual growth to a steep acceleration, marking the transition from early adoption to full-scale infrastructure buildout. Epoch AI estimates that combined capex at these five companies has been growing at an average annual rate of 72% since Q2 2023.
By Q4 2025, the five companies were spending a combined $140.6 billion in a single quarter. This surge underscores a fundamental shift. AI infrastructure is no longer a future bet, but a present-day cost of competing that is reshaping how the world’s largest tech companies allocate capital.
The growth was uneven, with Microsoft (+$30B), Amazon (+$25B), and Alphabet (+$19B) posting the biggest increases in quarterly capex from Q1 2022 to Q4 2025.
What Counts as AI Capex Here?
Epoch’s measure is based on two components pulled from SEC filings: cash spending on property, plant, and equipment (PP&E) and new finance leases. It uses structured 10-Q and 10-K filing data instead of company-reported capex figures, since firms do not always define capital expenditures the same way on earnings calls.
That makes the comparison more consistent, but it also comes with limits. Epoch notes that not all of this spending is exclusively AI-related, and excluded operating leases may understate total investment in productive capacity.
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