Code GenerationQwen CoderDeepSeekBest Practice

Code Generation Best Practices with Chinese Models: Qwen Coder vs DeepSeek Coding

Qwen3 Coder Plus and DeepSeek series are China's strongest code generation models. This article compares their performance across different code tasks with selection guidance.

Qwen3 Coder Plus Advantages

Qwen3 Coder Plus is Tongyi Qwen's code-specialized model, excelling at code generation with Chinese comments, code review, and Bugfix. It understands Chinese instructions better, ideal for domestic development teams.

DeepSeek Advantages

DeepSeek V4 Pro is stronger at complex system architecture code, algorithm implementation, and code explanation — especially on tasks requiring deep technical understanding.

Python Task Comparison

# Qwen Coder - good for daily code tasks
{"model":"qwen3-coder-plus","messages":[{"role":"user","content":"Write a Python function to calculate the nth Fibonacci number"}]}

# DeepSeek - good for complex algorithms
{"model":"deepseek-v4-pro","messages":[{"role":"user","content":"Implement an LRU cache with O(1) get and put operations"}]}

Frontend Tasks

Doubao Seed Code performs well in frontend development (React, Vue, HTML/CSS) with strong Bugfix and style adjustment capabilities.

Code Review

DeepSeek R1 is suitable for deep code review, capable of finding logical flaws and potential bugs; Qwen3 Coder Plus is suitable for format checking and code style optimization.