Qwen3.5

Qwen3.5

The 397B native multimodal agent with 17B active params

312upvotes
Launched February 17, 2026

About Qwen3.5

Qwen3.5 is an innovative open-weight, native vision-language model designed for complex, long-horizon agentic tasks. Leveraging a hybrid architecture that combines linear attention with Mixture of Experts (MoE), it delivers the power of a massive 397-billion-parameter model while maintaining inference speeds comparable to a 17-billion-parameter model. Its multimodal capabilities make it highly effective for tasks that require understanding and generating both visual and textual data, making it ideal for developers, AI researchers, and organizations seeking advanced AI solutions. What sets Qwen3.5 apart is its open-source nature, enabling customization and integration without vendor lock-in, and its efficient design that balances scale with performance. This makes it suitable for a range of demanding applications where speed and scalability are critical, all while being accessible for those willing to explore open AI models.

Screenshots

Qwen3.5 screenshot 1
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+3 more screenshots

Pros

  • Highly scalable with the capacity of a 397B parameter model
  • Fast inference speed comparable to smaller models
  • Multimodal capabilities integrating vision and language
  • Open-source, allowing customization and transparency
  • Optimized for long-horizon, agentic tasks

Cons

  • Requires technical expertise to implement and customize
  • Potentially high resource requirements for deployment
  • Limited out-of-the-box user-friendly interfaces

Use Cases

1Advanced vision-language understanding for autonomous agents
2Multimodal content creation and editing
3Complex AI research and experimentation
4Long-term task planning and decision making
5Custom AI assistant development
6Integration into robotics and automation systems

Pricing

Likely open-source with free access, given its open-weight architecture; enterprise or hosted solutions may involve custom pricing or support plans.

Quick Info

Upvotes312
Comments5
Launched2/17/2026

Topics

Open SourceArtificial IntelligenceDevelopment

Alternatives

GPT-4 by OpenAI
LLaMA by Meta
PaLM by Google
Claude by Anthropic
OpenAI's CLIP for vision-language tasks

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