Qwen (Tongyi Qianwen)
BeginnerAlibaba's open-source LLM family with strong multilingual and coding capabilities, available from 0.5B to 72B parameters.
Company
Alibaba Cloud
Founded
2023
Headquarters
Hangzhou, China
Pricing Range
Free (open-source, Apache 2.0) / API pay-per-token
Difficulty
beginner
Target Audience
Developers building custom AI applications who need a capable, permissively-licensed open-source LLM.
About
Qwen (Tongyi Qianwen) is Alibaba's family of large language models that has consistently ranked among the top open-source models globally. Available in sizes from 0.5B to 72B parameters, Qwen models excel at multilingual understanding (particularly Chinese and English), code generation, mathematical reasoning, and serve as excellent base models for fine-tuning. The Qwen 3.5 series introduced significant improvements in instruction following, tool use, and long-context handling (up to 128K tokens). For developers, Qwen's key advantage is its permissive Apache 2.0 license and the availability of small, efficient variants (1.5B, 3B, 4B) that can be fine-tuned on consumer hardware and deployed on edge devices.
Advantages
- 1Apache 2.0 license
- 2Wide size range (0.5B-72B)
- 3Strong multilingual
- 4Great fine-tuning base
Pros & Cons
Pros
- +Top-tier open-source performance
- +Permissive license
- +Wide size range
- +Active development
Cons
- −Rapid version iteration
- −Documentation primarily Chinese
- −Ecosystem smaller than Llama
Use Cases
Custom AI application development
On-device deployment
Domain-specific fine-tuning
Multilingual chatbots
Pricing
Open Source
$0
- Full model weights
- Apache 2.0
- All sizes (0.5B-72B)
- Community support
API
Pay-per-token
- Hosted inference
- Higher rate limits
- Enterprise SLA
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