DeepSeek-V4 Flash 0731 vs GPT-5.6 Luna on DeepSWE: Cost and Coding
The post compares 
DeepSeek-V4 Flash 0731 and GPT-5.6 Luna on DeepSWE, showing that while GPT-5.6 Luna is more accurate, DeepSeek-V4 Flash is much cheaper, and a cascade strategy combining both outperforms Luna alone on accuracy and cost.
