TikTok parent ByteDance has upgraded its Doubao chatbot, one of China’s most popular consumer-facing artificial intelligence (AI) apps, with the recent launch of a real-time video call function that turns the app into an interactive digital assistant. The function allows users to engage in an interactive video conversation with the AI technology behind the chatbot, according to an announcement last Friday via Doubao’s WeChat account. Users can activate the function by simply turning on their...