Qwen3 Coder

Qwen3-Coder is the most agentic open-source code MoE model, featuring 480B total parameters and a 1M token context window for repo-scale development.

This is the Qwen team's flagship agentic coding model, setting new state-of-the-art results among open models (comparable to Claude Sonnet 4). The Qwen3-Coder-480B-A35B-Instruct variant leverages a Mixture-of-Experts (MoE) architecture: 480 billion total parameters with only 35 billion active per token for efficiency. Crucially, it handles massive codebases with a native 256K context, extendable to 1M tokens, enabling true Agentic Coding, Browser-Use, and Tool-Use for complex, multi-turn software engineering tasks.

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