Alibaba Cloud unveiled its Qwen2.5-Max model today, marking the second major artificial intelligence breakthrough from China in less than a week, further rattling U.S. technology markets and intensifying concerns about America’s eroding AI leadership. The new model outperforms DeepSeek’s R1 model, whose success sent Nvidia’s stock plunging 17% on Monday, in several key benchmarks including Arena-Hard, LiveBench and LiveCodeBench.