The cutoff of API access by OpenAI in China and other regions where its ChatGPT service is not officially available may be related to U.S. policies. This move coincides with Washington's pressure on American tech companies to limit China's access to cutting-edge technologies developed in the U.S. The U.S. Department of the Treasury has also proposed a rule to implement an executive order signed by President Joe Biden, which aims to prevent technologies and money from the U.S. flowing to China. AI is considered a critical technology for military, intelligence, surveillance, or cyber-enabled capabilities.