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TL;DR - U.S. lawmakers are investigating DoorDash’s use of Moonshot AI’s Kimi model for coding tasks, citing security and national-security concerns around Chinese open-weight models. The case highlights growing tension between model cost and capability advantages and AI supply-chain scrutiny.

• DoorDash reportedly routes some internal tasks to Kimi K2.6 through a multi-model service.
• Internal tests reportedly found Kimi-based combinations competitive with Anthropic models at lower cost.
• Congressional investigators requested details about DoorDash’s deployment and safeguards.
• DoorDash said it would explain its secure use of both U.S.-developed frontier models and open-weight models.