China’s Alibaba takes another swipe at America’s AI supremacy

Alibaba says its latest model can compete with Anthropic’s Claude Fable 5.

Chinese tech giant Alibaba released what it says is its largest and “most capable AI model to date,” claiming performance rivaling the best systems from US frontier labs Anthropic and OpenAI, as well as domestic rivals like Moonshot AI’s Kimi K3. Alibaba said it was making the model, Qwen3.8-Max, widely available to users in a blog post published on Monday. The release had been expected after the company previewed the model last month, when it claimed it was “second only to Fable 5,” Anthropic’s flagship.

The open release of another highly capable Chinese AI model adds to sky-high tensions along multiple fronts in Silicon Valley and Washington over how to safely manage AI systems and retain the US’ technological edge over China.

Results from Alibaba’s own testing shared on Monday suggests it’s as powerful as claimed, as does its ranking on crowdsourced model-comparison platform Arena.AI. Alibaba’s own testing shows the model’s performance to broadly match — and sometimes exceed — that of Fable 5 on benchmark tests. On the Arena text model leaderboard , Qwen3.8-Max trails only Fable 5 and three models in Anthropic’s Opus family. For frontend coding, it is beaten only by two Claude Opus models and Kimi K3, and for visual analysis , only Fable 5 trounces it.

Alibaba says Qwen3.8-Max has 2.4 trillion parameters, a numerical measure of the settings a model learns during training that it uses to process data, recognize patterns, and undertake various tasks. While parameter counts are widely used as a shorthand for model performance, a bigger number does not always mean better. Moonshot’s Kimi K3 model has 2.8 trillion parameters, but most top American labs keep figures private, and neither OpenAI nor Anthropic disclose exact counts for their top systems.

The Chinese company said it will release the weights for Qwen3.8-Max next week. Weights are the adjustable numerical values of an AI that determine how it processes information. Open-weight systems, while more restrictive than traditional open-source software, give developers far more control than they have over proprietary products from companies like OpenAI and Anthropic. Qwen3.8-Max marks a return to open-weight releases for Alibaba after the company briefly pivoted towards proprietary releases for its more advanced models earlier this year.