Qwen3.5-4B
Alibaba · 2026-03-02 · 4.7B parameters
Qwen3.5-4B is Alibaba's open-weight dense model in the Qwen3.5 series, released March 2, 2026. Its complete multimodal checkpoint contains exactly 4,659,865,088 parameters; it accepts text, images, and video, uses a hybrid Gated DeltaNet/full-attention architecture, and supports 262,144 tokens natively with documented YaRN extension to 1,010,000 tokens.