China’s open-source AI push has created what Bloomberg calls a ‘death zone’ for rival American model makers.
The phrase captures a squeeze on the middle of the market, where US companies are too costly to match free Chinese models yet not good enough to command a frontier premium.
The pressure comes from giving models away. Chinese labs have released a wave of capable open-weight models that anyone can download and run, and that generosity is eating the market for paid American alternatives.
Open-weight means a model’s parameters are published, so anyone can run, tweak, or fine-tune it for nothing. That turns a cutting-edge model into a commodity almost the moment it ships.
The quality gap has narrowed to almost nothing. Stanford’s AI Index put China within 2.7% of the US on model performance, a gap it closed while spending a fraction of what American labs pour in.
