Qwen3-Coder is the latest and most powerful agentic code model developed by the Qwen team at Alibaba Cloud. Its flagship version, Qwen3-Coder-480B-A35B-Instruct, features a massive 480 billion-parameter Mixture-of-Experts architecture with 35 billion active parameters, delivering top-tier performance on coding and agentic tasks. This model sets new state-of-the-art benchmarks among open models for agentic coding, browser-use, and tool-use, matching performance comparable to leading models like Claude Sonnet. Qwen3-Coder supports an exceptionally long context window of 256,000 tokens, extendable to 1 million tokens using Yarn, enabling repository-scale code understanding and generation. It is capable of handling 358 programming languages, from common to niche, making it versatile for a wide range of development environments. The model integrates a specially designed function call format and supports popular platforms such as Qwen Code and CLINE for agentic coding workflows.
Features
- 480B-parameter Mixture-of-Experts model with 35B active parameters for powerful coding performance
- State-of-the-art agentic coding, browser-use, and tool-use abilities comparable to Claude Sonnet
- Native support for ultra-long contexts of 256K tokens, extendable to 1 million tokens with Yarn
- Supports 358 programming languages, covering almost all common and niche coding languages
- Specially designed function call format optimized for agentic coding platforms like Qwen Code and CLINE
- Retains strong math and general language understanding from the base Qwen3 model
- Instruction-tuned for chat-based coding assistance without requiring thinking mode or special token blocks
- Flexible fill-in-the-middle code completion with best-practice prompt formatting and high generation capacity
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User Reviews
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Such a good AI coding model