Nvidia's share of China's AI chip market is falling, and Huawei is the reason, Reuters reports. The shift matters beyond one company's sales sheet. It marks the first sustained challenge to Nvidia's grip on the processors that power modern AI systems in the world's second-largest economy.

The report does not give exact market-share figures. It states the direction clearly: Nvidia is losing ground, and Huawei is gaining it. That alone is the story.

Why is Nvidia's position weakening?

US export controls sit at the center of the mechanism. Washington restricts which Nvidia chips can ship to China. The rules have tightened repeatedly. Each round pushes Nvidia's most advanced products further out of reach for Chinese buyers.

Nvidia responded with modified chips designed to stay inside the rules. Those chips offer less performance than the full versions. Chinese customers know the difference. That creates an opening.

Huawei has stepped into it. The Chinese company has pushed its own AI processors, and domestic buyers have a growing incentive to use them. Reuters describes the result as Huawei catching up with Nvidia in its home market.

What does this change for the AI supply chain?

The practical question for buyers and investors is simple: does China's AI build-out still depend on Nvidia? The Reuters report suggests the answer is shifting from yes to partially.

Three forces drive the change:

• Export controls that cap what Nvidia can legally sell into China
• Modified Nvidia chips that perform below the restricted flagship models
• Huawei processors that improve with each generation and face no US export barrier domestically

For Chinese cloud providers and AI labs, the calculus now includes a domestic option that did not exist as a serious alternative a few years ago.

For Nvidia, China was long a major revenue source. Every point of share it cedes to Huawei is revenue that likely will not return, because the customers switching are building software stacks around the replacement hardware.

Is Huawei a full match yet?

Catching up is not the same as passing. Reuters frames the race as convergence, not a reversal. Nvidia's top chips still lead on raw performance and on the maturity of its CUDA software ecosystem, which developers across the industry have built on for nearly two decades.

Huawei's advantage is not technical superiority. Its advantage is access. It can sell freely in China, while its main rival operates under a moving set of US rules. In a market as large as China's, access alone can move share.

There is also a political dimension on the buyer side. Chinese firms and state-linked customers face pressure to source domestically. That pressure compounds the effect of the export rules.

What comes next?

Watch two things. First, whether Huawei's next chip generations close the remaining performance gap. Second, whether Washington tightens export rules again, which would accelerate the shift rather than slow it.

Nvidia will not exit China voluntarily. But the Reuters reporting indicates the era of uncontested dominance there is over. The market is splitting, and Huawei now holds the domestic side of the line.