Qwen 3.5
Open SourceAlibaba (Qwen)•Released on 2026-02-14
Alibaba's flagship open-source MoE model with 397B total parameters (17B active per pass). Apache 2.0 licensed for commercial use. Supports 201 languages with native vision capabilities. Best open-weight model for local deployment.
Voice of the community
sample 1,245“Then I downloaded Qwen 3.5, and it seems like everything changed overnight. In the past few days I got around 4-6 hours of solid work with minimal supervision out of it.”
“There is something special about the Qwen3.5 / Qwen-Next architecture that appears to make it especially resistant to damage from quantization.”
“Choose Qwen 3.5 if you want open-weight access with commercial freedom, the strongest vision/multimodal performance among open models, exceptional instruction following, multilingual support across 201 languages, or you simply need to run a powerful model locally without API costs.”
Core Specs
Scenario Scores
Pros & Cons
Pros
- +Open source (Apache 2.0)
- +Self-hostable with vLLM
- +201 language support
- +MoE efficiency (17B active)
- +Cheapest API among frontier-class
- +Strong vision/multimodal performance
Cons
- −Weaker on hard coding tasks vs Opus/GPT
- −Requires significant VRAM for local hosting
- −Quantization affects complex reasoning
- −Smaller context than GPT-5.4/Opus 4.6