Alibaba Group Holding Ltd. unveiled Qwen3.8-Max, its largest and most capable artificial intelligence model to date, triggering a more than 6% surge in its Hong Kong-listed shares on Monday. The 2.4-trillion-parameter model – open-weight and scheduled for public release next week – intensified the race among Chinese developers and narrowed the gap with leading US firms like OpenAI and Anthropic.
Massive model, competitive performance
Qwen3.8-Max, with only slightly fewer parameters than rival Moonshot AI's Kimi K3 (2.8 trillion), immediately became the highest-ranked Chinese model on the Arena.AI text-generation leaderboard. It placed fifth overall, trailing several Claude variants from Anthropic. On multimodal tasks (images and video), it ranked second globally, behind only one Claude Fable 5 variant. The model can process text, images and video with a context window of up to 1 million tokens.
Efficiency through mixture-of-experts
Using a mixture-of-experts architecture, only about 95 billion of the 2.4 trillion parameters activate per request, slashing computing costs and latency. Alibaba reported that the model autonomously completed a complex software engineering project in 16 days, highlighting its capabilities in extended coding and research tasks.
Strategic open-weight release
The open-weight approach – giving developers full access to model weights for customisation – reinforces Alibaba's drive to boost enterprise adoption through its Cloud Model Studio and QwenWork assistant platform. It marks a return to open-source roots after several proprietary launches earlier this year. The up to 380 billion yuan (≈$56 billion) AI infrastructure investment plan announced in May underscores the company's strategic commitment.
Investor reaction and market context
Alibaba shares jumped as much as 7.3%, their best intraday performance in nearly a month. Union Bancaire Privée managing director Vey-Sern Ling noted, "Many investors continue to underestimate Chinese AI models because of US chip restrictions or general skepticism. In reality, the gap is probably much closer and narrowing fast." The rally reflects market belief that AI will be a key long-term growth driver for Alibaba.
Intensifying US-China AI rivalry
The launch comes days after Moonshot’s Kimi stunned Western observers and amid a flurry of Chinese AI advances from DeepSeek, ByteDance and MiniMax. Meanwhile, tensions escalated as Anthropic accused operators associated with Alibaba of conducting nearly 29 million "distillation attacks" using fake accounts – a campaign the San Francisco company labelled the biggest extraction effort it had witnessed. The dispute highlights the high-stakes battle for AI supremacy, with Washington previously blacklisting foreign access to certain Anthropic models and demanding stronger safeguards.
