China's AI Models vs My Invoice: A Freelancer's Real-World Test

Short summary

A freelancer tested 10 real client tasks across DeepSeek, Qwen, and Kimi models, finding DeepSeek V4 Flash cuts costs to $0.25/M output tokens (40x cheaper than GPT-4o) while maintaining quality. Qwen offers broader capability range ($0.01–$3.20/M) for specialized tasks, while Kimi ($3/M) serves premium projects. Optimizing model selection per task reduces client budgets and improves freelancer margins.

• •DeepSeek V4 Flash achieves 40x cost reduction vs GPT-4o with comparable quality for most tasks
• •Qwen spans $0.01–$3.20/M per task type; Kimi reserved for premium-ROI projects with complex reasoning
• •Practical strategy: optimize model selection per task rather than defaulting to premium models

Generated with AI, which can make mistakes.