Alibaba Releases Qwen 3.8-Max: 2.4T-Parameter Max-Level Model Open-Sourced for the First Time

On August 3, 2026, Alibaba Cloud officially launched Qwen 3.8-Max: a sparse MoE model with 2.4 trillion total parameters and 95 billion activated parameters, featuring a 1-million-token context window and multimodal input support. This marks the first time a Qwen-Max series model has promised open-source weights, and it is expected to be available on Hugging Face and ModelScope next week. The API has already gone live on QwenCloud, Model Studio, and Vercel AI Gateway (alibaba/qwen3.8-max), and supports Agent tools such as Claude Code and Codex. This article sorts out the verified specifications, key long-range Agent capabilities and access methods for developers to evaluate and call, or wait for self-hosting.