Amazon has exited its Shanghai AI research lab amid shifting US-China relations and increasing geopolitical tensions. The closure impacts roles within Amazon Web Services, including recent layoffs in marketing and training teams. Launched in 2018, the lab focused on machine learning and natural language processing. This move reflects broader corporate retreat from China, following earlier exits from the Kindle store and e-commerce platform. The decision highlights the impact of global political pressures on tech investments in the region.