Qwen-3Coder

Alibaba’s flagship open-source coding agent: a 480B-parameter MoE model built for autonomous repository-scale development.

Qwen3-Coder is a high-performance Mixture-of-Experts (MoE) model built for agentic software engineering. It leverages 480 billion total parameters (35 billion active per token) to handle complex, multi-step tasks across a native 256K-token context window. The system excels at repository-level reasoning: it integrates with the Qwen Code CLI to automate debugging, refactoring, and tool use. Armed with 7.5 trillion training tokens and state-of-the-art SWE-Bench scores, this model offers a robust, Apache-2.0 licensed alternative to proprietary coding assistants.

https://github.com/QwenLM/Qwen3-Coder