Chinese artificial intelligence developers are rapidly overhauling their pricing strategies as DeepSeek’s ultra-cheap V4 models trigger a new round of competition, forcing rivals to rethink how they monetise AI in a cutthroat domestic market.Smartphone and electric-vehicle maker Xiaomi has emerged as one of the latest companies to respond, slashing application programming interface (API) costs for its MiMo-V2.5 model by as much as 99 per cent from previous levels.Usage of Xiaomi’s MiMo-V2.5...