US lawmakers are investigating DoorDash’s utilization of artificial intelligence models developed by Chinese start-up Moonshot AI. The inquiry follows a disclosure by DoorDash’s co-founder regarding experimentation with Moonshot's Kimi K2.6 model. This investigation highlights increasing concerns among US politicians about the growing reliance on Chinese AI technology by American companies. Lawmakers are particularly focused on the cost-saving benefits driving this trend, despite potential security risks. The House Select Committee on China is leading the charge, seeking information about the extent and implications of DoorDash's AI partnerships. This scrutiny reflects a broader effort to understand and address the national security implications of AI technology transfer and dependence.