U.S. Lawmakers Probe DoorDash Over Use of Chinese AI Models

The House Committee on Homeland Security and the House Select Committee on the Chinese Communist Party have launched an inquiry into DoorDash's use of artificial intelligence models developed in China. The investigation centers on potential national security and cybersecurity vulnerabilities created when U.S. companies integrate open-weight AI from the People's Republic of China (PRC) into commercial infrastructure.

Led by Chairmen Andrew R. Garbarino and John Moolenaar, the committees requested documents from DoorDash after founder Andy Fang posted on social media that the company delegated lower-level AI tasks to Kimi K2.6, a model created by the Beijing-based firm Moonshot AI. This action is part of a broader joint investigation that began in April 2026, which initially targeted other U.S. firms, including Airbnb and Anysphere.

The Security Landscape

U.S. tech companies are increasingly drawn to Chinese open-weight models for their competitive performance, lower costs, and customization options. Unlike proprietary systems, these models can be hosted on private servers and are frequently available through major American cloud providers such as Google, Microsoft, and Amazon. However, this trend has alarmed lawmakers who fear a growing dependence on entities subject to PRC jurisdiction.

Adding to these concerns, the White House Office of Science and Technology Policy reported on July 22, 2026, that Moonshot AI may have operated a covert platform designed to conduct large-scale distillation against American AI models. Distillation allows a smaller model to mimic the behavior of a larger, more advanced one, raising significant concerns regarding intellectual property theft and the erosion of the U.S. technological edge.

Industry Implications

This probe signals a shift toward stricter regulatory scrutiny of the "AI supply chain." Lawmakers are weighing the economic benefits of efficient AI against the imperative to prevent the PRC from gaining insights into U.S. systems. Chairmen Garbarino and Moolenaar stated that practical economic considerations "do not eliminate the need for risk-based safeguards" or diminish the security concerns of PRC-linked dependencies.

What's Next

DoorDash stated it looks forward to engaging with the committees regarding its responsible use of both American-developed frontier models and open-weight models. The investigation will likely continue to examine how many other U.S. firms are utilizing PRC-developed weights and whether current safeguards are sufficient to prevent state-sponsored exploitation or data leakage.