ByteDance-owned Doubao remained mainland China’s top consumer artificial intelligence app in December, according to a report, as the country’s Big Tech companies continued to outpace emerging start-ups in this market. Doubao, a ChatGPT-like app, had 155 million weekly active users in the second week of December, according to data released on Tuesday by business intelligence service provider QuestMobile. It said that number was nearly double the 81.56 million total recorded by DeepSeek’s...