Alibaba, Baidu Shares Climb as New Chinese AI Models Challenge US Leaders

Shares of Chinese technology giants Alibaba and Baidu surged in premarket trading Monday following the release of new domestic artificial intelligence models that analysts say are beginning to rival top U.S. competitors, triggering a sharp rotation out of semiconductor stocks.

New Models Rival Top US Offerings

The rally was sparked by two significant announcements from Chinese AI developers. Alibaba previewed Qwen3.8 Max, a 2.4-trillion-parameter model it claims is “second only” to Anthropic’s Claude Fable 5. Separately, Beijing-based Moonshot AI launched Kimi K3, a 2.8-trillion-parameter model with a 1 million-token context window that has demonstrated performance close to leading global models like Claude Fable 5 and GPT-5.6 Sol in benchmark tests.

Goldman Sachs analysts noted that these developments suggest China’s AI models are “reaching a critical point of intelligence performance for global proliferation.” The next major catalyst for the sector is expected on July 27, when Moonshot AI is scheduled to publicly release the open weights for its Kimi K3 model.

Market Rotation Shakes Chip Stocks

The advancements in Chinese AI software prompted a significant shift in investor sentiment, boosting platform companies while punishing hardware-dependent chipmakers. In U.S. premarket trading, Alibaba (BABA) shares were up around 4%, while Baidu (BIDU) added 3.8%.

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This contrasted sharply with the semiconductor sector. South Korea’s KOSPI index fell 4.5% amid an accelerated sell-off in memory chip stocks like SK Hynix and Samsung. The downturn also hit U.S. markets, where the Philadelphia SE Semiconductor Index confirmed it had entered a bear market last week, sitting more than 20% below its late-June all-time high.

Analysts See a Structural Shift

Analysts at Citi described the rapid iteration as a “structural shift” that could foster a “model-agnostic” environment where enterprises use multiple AI systems based on performance and price. The bank believes companies with full-stack capabilities, from cloud infrastructure to models, such as Alibaba, are best positioned to benefit.

Alibaba is seen as a key beneficiary, not only from its own model but also from its cloud division, which stands to capture enterprise spending. The company also secured a major distribution channel after its Qwen model was selected to power Apple Intelligence for users in China. However, Bank of America cautioned that while Kimi K3's capabilities are impressive, it is the most expensive Chinese model to date, and Alibaba's Qwen faces intensifying domestic competition.