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Qwen3-Coder 480B A35B Instruct API
480B-parameter MoE coding model with 35B active, 256K context, and agentic performance rivaling Claude Sonnet on complex development tasks.

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Qwen3-Coder 480B A35B Instruct API Usage
Endpoint
How to use Qwen3-Coder 480B A35B Instruct
Model details
Architecture Overview:
• Mixture-of-Experts architecture with 480B total parameters and 35B active parameters
• Native 256K token context window, extendable to 1M tokens using Yarn interpolation
• Advanced grouped query attention mechanism for memory efficiency
Training Methodology:
• Trained on 7.5 trillion high-quality tokens with 70% code ratio across 358 programming languages
• Sophisticated post-training with supervised fine-tuning and reinforcement learning workflows
• Constitutional AI training for safety alignment and responsible code generation
Performance Characteristics:
• State-of-the-art SWE-bench Verified results at 69.6%, comparable to Claude Sonnet 4
• Exceptional agentic coding capabilities with 37.5 score on complex autonomous workflows
• Superior tool use and browser automation performance for development tasks
Prompting Qwen3-Coder 480B A35B Instruct
Applications & Use Cases
Agentic Development Workflows:
• Autonomous software engineering tasks spanning multiple files and services
• Legacy system modernization with comprehensive analysis and migration planning
• End-to-end feature development across backend APIs, frontend components, & databases
Advanced Code Generation:
• Repository-scale refactoring and architectural improvements
• Complex debugging and root cause analysis across distributed systems
• Code completion and fill-in-the-middle for development environments
Enterprise Integration:
• Custom development workflows with fine-tuning capabilities
• Production deployment automation and CI/CD pipeline generation
• Code review assistance and security vulnerability identification
Developer Tooling:
• Integration with platforms like Qwen Code, CLINE, and VS Code extensions
• Batch processing for large codebase analysis and transformation
• Real-time coding assistance with context-aware suggestions