US AI start-up funding reached $97 billion in 2024, accounting for nearly half of the total start-up funding for the year, a record high. Several companies, including xAI and OpenAI, completed billions of dollars in financing, driving this growth. Global AI investment accounted for 35.7% of the total venture capital. Meanwhile, start-up financing in Europe and Asia fell to $61.60 billion and $75.90 billion respectively, indicating that resources are more concentrated in the AI field.