On August 6 (local time), OpenAI revealed that free users would now have access to an upgraded default model—GPT-5.6 Luna—with unlimited text-based interactions, following the ineffectiveness of an 80% price cut in stemming the exodus of developers. Recent data indicates that DeepSeek’s weekly usage volume has surged to 11.31 trillion tokens, nearly three times that of GPT-5.6 Luna. In light of this intensifying competition, DeepSeek is poised to substantially increase its API service fees in the near term. The ascent of China’s homegrown open-source models is driving a fundamental reshaping of the global AI pricing landscape.