Private AI investment in the United States reached $285.9 billion in 2025—23 times China’s $12.4 billion—yet by March 2026, the countries’ leading models were separated by just 2.7% on the Arena leaderboard. - ScienceBlog.com

The U.S. is spending far more on AI development than China, but the two countries' best AI models are becoming nearly identical in performance. This raises questions about whether money alone determines technological advantage.