Chinese AI Models Hit Record 58% of US OpenRouter Traffic

A year ago, US-built models handled around 70% of the tokens flowing through OpenRouter, the routing platform many developers and enterprises use to compare and access LLMs. As of this month, Bloomberg reports that share is closer to 30%, with Chinese open-weight models capturing the majority. The proportion of tokens run specifically by US firms through Chinese models on OpenRouter hit a record 58%, briefly touching 63% during the first week of July.

DeepSeek alone is now the single largest vendor on the platform at 17.6% of routed tokens weekly, ahead of every US lab, with Alibaba's Qwen at 13.9%. The mechanical explanation is price: open-source Chinese models are 60% to 90% cheaper than the leading Anthropic and OpenAI offerings, according to OpenRouter's Justin Summerville. Lindy AI, an assistant startup cited in the reporting, said moving from Anthropic's models to DeepSeek cut its inference costs by 90%.

The Washington reaction is where the story turns awkward. Treasury Secretary Scott Bessent told Fox Business the US could sanction foreign models found to be stealing from American ones, citing distillation and claiming "we are finding watermarks of our U.S. large language models on many of the Chinese models." US Trade Representative Jamieson Greer said the administration is taking "a very close look at how China is propagating its AI development." The bind is that the same models Washington is threatening to sanction are the ones US enterprises have quietly routed a majority of their token traffic through. A move that would have been almost costless a year ago now has a real domestic bill attached.

The honest caveat is that OpenRouter is one platform, and token share is not revenue share. What the reporting doesn't give you is how much of that 58% is production workloads versus experimentation, or how fast US labs could close the price gap if they had to. The two governments are also planning their first official AI dialogue in September ahead of Xi Jinping's planned US visit on September 24, so posture could shift before any actual enforcement lands.

The forward-looking read: leverage in this fight has quietly moved to whoever owns the developer default, and Chinese labs are paying to be it. US labs that want it back will either have to compete on price, embrace open weights of their own, or lobby for enforcement that would knock a real chunk of their own customers' current workloads offline.