What is the context window of Qwen3.5-4B?

Qwen3.5-4B has a context window of 256k tokens.

When was Qwen3.5-4B released?

Qwen3.5-4B was released on 2025-11-12.

Name: Qwen3.5-4B
Author: Alibaba

Compact variant in Qwen3.5 series with extended context window (256K tokens) for long-form applications.

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

Released2025-11-12

Parameters4B

Context256k

Specializationgeneral

AI research institute of Alibaba Group.

Hangzhou, Zhejiang, China

Founded 2017