Qwen3.5
The 397B native multimodal agent with 17B active params
Qwen3.5 launched on February 17, 2026 with 288 votes, #88 of 16,628 launches that month and more than 99% of that year's launches.
In plain words
Qwen3.5 is an open-weight vision-language model designed for agentic tasks that require reasoning over long sequences. It combines linear attention with mixture-of-experts architecture to provide the reasoning capabilities of a 397-billion-parameter model while maintaining inference speeds comparable to a 17-billion-parameter model. The system handles both text and images natively, making it suitable for developers building autonomous AI agents.
written from the facts on this page · September 2026
From the sources
An open-weight, native vision-language model built for long-horizon agentic tasks. Its hybrid architecture (linear attention + MoE) delivers the capabilities of a 397B giant with the inference speed of a 17B model.
Qwen Studio offers comprehensive functionality spanning chatbot, image and video understanding, image generation, document processing, web search integration, tool utilization, and artifacts.
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Qwen3.5 SmallMar 2026 · huggingface.co · ▲3550.8B-9B native multimodal w/ more intelligence, less compute





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