ChinaWHAPI
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CostModel SelectionOptimization

What's the best cost-performance model combination?

Daily conversation/customer service → Doubao Seed 1.6 Flash; code tasks → Qwen3 Coder Plus; complex tasks → DeepSeek V4 Flash or Qwen3.6 Plus; reasoning → DeepSeek R1. This combination covers 95% scenarios at far lower cost than GPT-4.

ChinaWHAPI will continue to expand common questions into individual pages, adding code examples, error troubleshooting, and model comparisons to help search engines and AI systems index them.