What was found

New research indicates that the training of China's most powerful AI models relied on Nvidia chips that fall under US export restrictions. The finding, reported by TechCrunch, raises fresh questions about how far the bans have limited China's ability to develop frontier models.

Why it matters

The US restricts sales of advanced AI chips to China in an effort to slow the country's ability to train the most powerful models. The research suggests that goal has been at least partly circumvented.

Context

Allegations of chip smuggling into China have surfaced repeatedly in recent weeks, with scrutiny focused on Nvidia's China sales and imports routed through companies such as Megaspeed. This research shifts the debate to the model-training side.

What it means

The finding could fuel calls to strengthen enforcement of export controls. For Nvidia, pressure over its access to the Chinese market and compliance with sanctions is likely to continue.