Alibaba Open-Sources 2.4 Trillion Parameter Qwen3.8 Flagship Model

大模型之路 · wechat · 2026-08-14

Alibaba's Qwen team has released the weights for Qwen3.8-2.4T-A95B, marking the first time a Max-level flagship model has been open-sourced in China. The model features 2.4 trillion total parameters with 95 billion activated per token, natively supporting a 262,144-token context window extendable to over one million.

This move significantly lowers the barrier to entry for top-tier foundation models. Using 1-bit layered quantization, the model size is compressed to 397GB, allowing enterprises to run local private deployments on a single high-end workstation, thereby avoiding steep cloud API costs. On the same day, DeepSeek V4 Pro officially launched, while Elon Musk's Grok 4.6 remained closed-source via API, highlighting a direct clash between open and closed ecosystems in the long-horizon autonomous agent track.

Although the open-source version slightly trails top closed-source models on certain coding benchmarks and has updated commercial licensing, its low-cost, highly flexible deployment is putting real pressure on the pricing power of closed-source vendors. As domestic open-source models accelerate their iteration pace, the industry's competitive focus is shifting from raw model capabilities to ecosystem building and infrastructure adoption.

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Alibaba Open-Sources 2.4 Trillion Parameter Qwen3.8 Flagship Model

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