Deepseek Bypasses Us Chip Bans With Modified Nvidia H800, Sparking Export Control Fears

BEIJING, December 10, 2025 – DeepSeek, a Hangzhou-based AI startup, has developed a powerful language model using modified versions of Nvidia’s export-restricted H800 chips, raising questions about the effectiveness of U.S. efforts to limit China’s access to advanced semiconductor technology.

The company released DeepSeek-V3 on Tuesday, a 671-billion-parameter model that it claims matches OpenAI’s GPT-4o in capabilities while costing just $6 million to train—compared to the $100 million or more for similar Western systems.

Trained on a cluster of 2,048 GPUs over two months, V3 scored 90.2 on the MATH benchmark for mathematical reasoning and 82.6 on HumanEval for coding tasks, according to DeepSeek’s evaluations.

DeepSeek CEO Liang Wenfeng disclosed in a WeChat interview that engineers “optimized” the H800 chips—Nvidia’s throttled version of the H100 designed for compliance with 2022 U.S. export rules—to enhance performance without breaking laws.

“We didn’t violate any laws; we just made the hardware work better for our needs,” Liang said. The H800, limited to 70% of the H100’s speed to curb AI development in China, still powers a significant portion of the country’s compute resources.

Backed by High-Flyer Quant Investment, which manages $2 billion in assets for quantitative trading, DeepSeek launched its first model in 2023. The new V3 will be open-sourced, allowing global developers to build on its weights. “Our goal is to democratize AI, not weaponize it,” Liang added.

The disclosure has prompted concern among U.S. officials. The Commerce Department’s Bureau of Industry and Security added 140 Chinese entities to its Entity List in October, targeting chip designers and AI firms. Nvidia, which earned 20% of its revenue from China pre-restrictions, has adapted with compliant models like the A800 and H800 but faces ongoing losses.

Analysts see DeepSeek’s approach as emblematic of China’s push for self-sufficiency. Domestic alternatives, such as Huawei’s Ascend chips, are gaining traction in a $50 billion annual AI hardware market. Beijing has retaliated against U.S. curbs with limits on rare-earth exports critical for semiconductors.

DeepSeek’s breakthrough, achieved at a fraction of Western costs, underscores the challenges in enforcing export controls as modifications and local innovation erode their impact. The U.S. may need to address software-based workarounds in future rules.