Qwen3.8-Flash-Next

Name: Qwen3.8-Flash-Next
Author: Alibaba / Qwen

Alibaba / Qwen🇨🇳 China

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Context window262K tokens

Version History

3.8-Flash-NextmajorAugust 26, 2026

Qwen3.8-Flash-Next is an experimental preview of the architecture planned for Qwen4, introducing Qwen Sparse Attention, gated residual streams, n-gram embeddings, and a new optimizer recipe. It has 125B total parameters with 6B activated and supports up to 1 million tokens of context.

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model release

Alibaba Releases Qwen3.8-Flash-Next, a 125B-Parameter Preview of Qwen4's Architecture

Alibaba's Qwen team has released Qwen3.8-Flash-Next, an open-weight model with 125B total parameters (6B activated) that previews architectural changes planned for Qwen4, including a new sparse attention mechanism and n-gram embeddings. The model natively supports 262,144 tokens of context, extensible to 1 million.

August 26, 2026 · 12:36 PM2 min read

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