Alibaba's Qwen 3.8 2.4T parameter preview goes live, "open-sourced weights coming soon" becomes a suspense

On July 19, 2026 during the WAIC conference, Alibaba's Qwen team released the 2.4-trillion-parameter multimodal preview version Qwen3.8-Max-Preview, claiming that its capabilities are second only to Claude Fable 5, and promising that the open-weight release will arrive "soon". Unlike Kimi K3, which came with benchmark results and a clear open-source timeline, this announcement lacked evaluation tables, model cards, and a weight open-source schedule. This article cross-verifies official and media reports, sorts out the MoE architecture, Token Plan/Qoder access methods, the changes in Qwen's flagship open strategy, and guides developers on how to distinguish between "verifiable facts" and "manufacturer positioning" to rationally试用 this still-iterating preview endpoint.