US private investment in artificial intelligence reached $285.9 billion in 2025, more than 23 times the $12.4 billion invested in China, according to Stanford's 2026 AI Index Report, the most widely cited annual accounting of the technology's trajectory.

The global numbers show acceleration rather than plateau. Worldwide corporate AI investment hit $581.7 billion in 2025, up 130% from the prior year, while global private investment reached $344.7 billion, an increase of 127.5% from 2024. The United States also led entrepreneurial activity with 1,953 newly funded AI companies in 2025, more than 10 times the next closest country.

Consumer adoption is moving at a pace the report calls historically unprecedented. Generative AI reached 53% population adoption globally within three years of launch, faster than the personal computer or the internet spread. Adoption varies sharply by region: Singapore stands at 61% and the United Arab Emirates at 64%, while the United States ranks 24th at 28.3% of population.

The report estimates the value of generative AI tools to US consumers at $172 billion annually as of early 2026, with the median value per user tripling between 2025 and 2026. One countertrend stands out: the number of AI researchers and developers relocating to the US has dropped 89% since 2017.

Source: Stanford HAI AI Index - https://hai.stanford.edu/ai-index/2026-ai-index-report