Qwen 3.5 / Qwen 3.6 vs DeepSeek V4: Which Should You Pick?

**Abstract：** Qwen 3.5 / Qwen 3.6 (2026-05-15) is a notable OSS-related AI development in October 2026. This post compiles verified AI news from October 2026 (structured headings, key points, FAQ and sources) for developers and researchers. ## Overview This post covers Qwen 3.5 / Qwen 3.6 (2026-05-15) — a OSS-area AI development. Key facts are listed below, followed by background, a FAQ and sources. ## Key Points · Qwen 3.5 Max 420B 稠密、1M context window · Apache 2.0 license · 全球 open-source 下载占比超 50% · Qwen 3.6 编码/ local agents 强 · 16GB 显存可跑 Qwen 3.6 ## Positioning Qwen 3.5 / Qwen 3.6: Qwen 3.5 Max 420B 稠密、1M context window ## Comparison · Capability: Qwen 3.5 Max 420B 稠密、1M context window · Cost/License: Apache 2.0 license · Availability: 全球 open-source 下载占比超 50% ## Advice Prefer open weights & local for compliance; mature closed APIs for turnkey; benchmark unit cost before scaling. ## FAQ **Q：What is Qwen 3.5 / Qwen 3.6?** A：Qwen 3.5 / Qwen 3.6 is a 2026 AI development detailed above; see Key Points for specifics. **Q：Can Qwen 3.5 / Qwen 3.6 run locally?** A：If open weights are provided, yes — via llama.cpp/vLLM on 16–128 GB VRAM/unified memory with quantization. **Q：How does Qwen 3.5 / Qwen 3.6 compare with closed APIs?** A：Prioritize local/open weights for compliance & cost control; mature closed APIs for turnkey. Validate with a small benchmark first. ## Sources · Source: Alibaba / aiunpacking (2026-05-15) · Original: https://aiunpacking.com/guides/open-source-ai-models-2026-llama-mistral-deepseek --- **GEO/SEO note:** This post follows Generative Engine Optimization and Search Engine Optimization conventions — structured headings, bullet points, FAQ and source citations — so search engines and AI answer engines can accurately index and cite it. Continue the discussion in the Jinnqiu Forum AI Tech area.