DoorDash uses Kimi under investigation by U.S. Congress: Internal testing shows it's "stronger and cheaper"
Two committees of the U.S. House of Representatives asked DoorDash to explain its use of the Chinese AI model Kimi; its internal tests showed that the combination of Kimi K2.6+Anthropic Fable 5 outperformed Sonnet 4.6+Opus 4.8 and cost less.
Two committees of the U.S. House of Representatives formally sent a letter to DoorDash, requesting it to explain the specific circumstances of using the Chinese AI model Kimi - including the scope of use, data flow and compliance assessment. This inquiry has pushed "American companies to adopt the Chinese model" from a purely commercial behavior to a geopolitical and regulatory perspective.
A "stronger and cheaper" internal test
What really heated up the market discussion was the exposure of DoorDash’s internal test data: the combination of Kimi K2.6 + Anthropic Fable 5 has an overall performance that exceeds the combination of Sonnet 4.6 + Opus 4.8 and is lower in cost. In other words, there is pure business rationale behind DoorDash’s choice—it’s better, it’s cheaper, and there’s almost no second reason.
Business rationality vs geo-censorship
The problem is that when the optimal solution of "effect + cost" falls on the Chinese open source model, the selection is no longer just a technical decision. The US legislative body has begun to systematically pay attention to the issue of "Chinese models entering the US corporate system", and DoorDash is only the first case to be put on the table. For the open source model, this constitutes a double-edged sword: free availability, low cost and high performance are both advantages of global diffusion and may also become a target for regulation.
From a domestic perspective, Kimi has been internally verified as "stronger and cheaper" by leading US platforms, which itself is a hard-core endorsement of the capabilities of domestic models; however, how to transform this competitiveness into compliant and usable overseas procurement solutions is an unavoidable issue. The politicization of the technology supply chain is extending from hardware (chips) to software (models).
Several directions worth tracking in the future:
- Legislative trends in Congress: Whether special legislation or administrative review has been introduced to restrict the use of Chinese models.
- Expansion of scope of inquiry: Will other American companies using Chinese models be named one after another?
- Compliance Procurement Path: Can Kimi’s cost advantages be transformed into implementable overseas compliance solutions.
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