Although Apple installed Siri for the first time on iOS 5 released in 2011 and was focusing on voice assistant earlier than other companies, Google and Amazon's technical capabilities overtook Apple eventually, Google Assistant and Amazon Alexa Has been gaining a share of Siri and later. According to a report by The Information of overseas media, the development team of Siri has been cold-treated in Apple, and in recent years the department has not taken control, and it seems that development was never smooth. In 2018, Apple pulled out John Giannandrea, Google's former AI division head, and showed a radical review of the AI business. The information says Stasior left Apple in May 2019 because of the impact of Apple's AI restructuring. Apple scouts Google's artificial intelligence (AI) development chief, possible impact on Siri upgrade-gigazine