Use Claude Code with Qwen3 Coder

Tutorial
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1

Introduction

Qwen3-Coder,Alibaba most agentic code model to date. Qwen3-Coder is available in multiple sizes, but its most powerful variant first: Qwen3-Coder-480B-A35B-Instruct — a 480B-parameter Mixture-of-Experts model with 35B active parameters which supports the context length of 256K tokens natively and 1M tokens with extrapolation methods, offering exceptional performance in both coding and agentic tasks. Qwen3-Coder-480B-A35B-Instruct sets new state-of-the-art results among open models on Agentic Coding, Agentic Browser-Use, and Agentic Tool-Use, comparable to Claude Sonnet 4.

This tutorial can help you quick start Claude Code with Qwen3 Coder.
Prerequisites

  1. Newly installed Claude Code

  2. An Api Key for Claude Code

Step 1 - Newly installed Claude Code

Global installation (see official documentation for more usage)

npm install -g @anthropic-ai/claude-code

If a previous version has been installed and needs to be uninstalled, execute the following uninstallation

npm uninstall -g @anthropic-ai/claude-code

rm -rf ~/.claude*

Step 2 - Register on Alibabacloud to Generate an API key for Qwen3 Coder

Go to alibabacloud modelstudio and register

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Copy api key like sk-abc123

Step 3 - Start with environment variables

for macOS and Linux user

export ANTHROPIC_API_KEY=sk-xxxxxxxxxxxxxxxxx
export ANTHROPIC_BASE_URL=https://dashscope-intl.aliyuncs.com/api/v2/apps/claude-code-proxy

for windows user

setx ANTHROPIC_API_KEY "sk-xxxxxxxxxxxxxxxxx"
setx ANTHROPIC_BASE_URL "https://dashscope-intl.aliyuncs.com/api/v2/apps/claude-code-proxy"

if you are in China ,ANTHROPIC_BASE_URL Should be dashscope.aliyuncs.com/api/v2/apps/claude-code-proxy

You can check the settings in this area when you encounter a 401 error message.

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then start Claude Code and enjoy coding.