US private AI investment reached $285.9 billion in 2025 — 23.1 times China's $12.4 billion and 48.5 times the UK's $5.9 billion — per Stanford's 2026 AI Index
The Stanford AI Index 2026 report, using Quid data, measured private AI investment in 2025. The United States led globally with $285.9 billion, which was 23.1 times China's $12.4 billion and 48.5 times the United Kingdom's $5.9 billion. This indicates a high concentration of private AI investment in a small number of countries.
Verified 2026-09-21
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Private money for AI is concentrated in the US, far ahead of China and the UK.
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- While Amazon, Microsoft, Meta, Alphabet and Oracle have all sharply increased AI capital spending, Apple's cash paid for property, plant and equipment in the nine months to 27 June 2026 actually fell, to Apple's nine-month capex of $6.8 billion, down 28% from $9.47 billion a year earlier
- A Brookings Papers draft by Columbia's Stijn Van Nieuwerburgh projects that the US AI build-out of 2025 to 2032 will absorb, every year, 3.63% of GDP, versus 2.24% for the railroads of 1870–1890
- Global private investment in AI reached $344.7 billion in 2025, up 127.5% year-over-year, with generative AI companies alone capturing $170.9 billion of that total
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