What are the latest developments in the US-China tech rivalry?

The US-China tech rivalry has entered a new, more granular phase — moving beyond broad export controls into a surgical battle over specific chokepoints: advanced chips, AI model weights, quantum hardware, and the software stacks that tie them together. Rather than a single dramatic escalation, the competition is now defined by a relentless accumulation of incremental moves, each designed to widen or close a capability gap measured in nanometers and petaflops.

On the semiconductor front, the Biden-era export control architecture continues to ripple through supply chains even as the Trump administration considers tightening restrictions further. The Wall Street Journal recently reported that the Commerce Department is evaluating new rules that would close loopholes allowing Chinese firms to access Nvidia H20 chips — a downgraded GPU specifically designed to comply with earlier restrictions. Meanwhile, Huawei's Ascend 910C chip has drawn intensifying scrutiny from analysts at SemiAnalysis, who argue it is closing the performance gap with Nvidia's restricted offerings faster than US policymakers anticipated, forcing a reassessment of how effective the controls actually are. The core dilemma is stark: every workaround China engineers demands a new US countermeasure, and the cycle is accelerating.

On the AI frontier, the release of DeepSeek R1 earlier this year demonstrated that Chinese labs can achieve frontier-level reasoning performance at dramatically lower compute costs — a finding that rattled assumptions in Washington and Silicon Valley alike. MIT Technology Review has highlighted how this efficiency breakthrough complicates the "compute ceiling" theory underlying US export controls: if world-class models can be trained on fewer, less powerful chips, restricting access to cutting-edge hardware becomes a less decisive lever. Chinese tech giants Alibaba and ByteDance have since published competitive open-weight models, signaling that the AI race is no longer a two-horse contest between OpenAI and Google, but a multi-front competition with Chinese labs as serious contenders.

Watch for two things in the coming weeks: first, whether the Commerce Department finalizes new AI chip export rules before the next major Nvidia product cycle, and second, how the ongoing US-China trade negotiations — currently in a fragile détente — affect the political appetite for further tech decoupling. The technology rivalry is now deeply entangled with macroeconomic bargaining, and any tariff deal could quietly trade away controls that took years to construct.

— Orbit