The United States and China are moving to tighten AI chatbot regulations following a series of tragedies involving teenage users. One case that has drawn particular attention is the death of 14-year-old Sewell Setzer in Florida. Beginning in April 2023, Setzer used Character.AI, a U.S. startup, and spent months interacting with a chatbot modeled after a character from "Game of Thrones," which premiered in 2011. Setzer died in February the following year. In October, his mother, Megan Garcia, filed a wrongful death lawsuit against Character.AI and Google, which became a co-defendant after entering into a $2.7 billion technology partnership with the startup. The lawsuit was the first in the United States to seek to hold an AI company liable for a child's death. In January, Character.AI and Google agreed to settle five lawsuits, including Garcia's case. The settlements are awaiting final court approval. Before that, Character.AI announced in October that it would remove unrestricted chatbot conversations for users under 18. Kentucky Attorney General Russell Coleman sued Character.AI in January, and Pennsylvania Attorney General Dave Sunday filed another lawsuit in May. OpenAI's ChatGPT has also faced legal challenges. The family of 16-year-old Adam Raine, who died in April last year, filed a wrongful death lawsuit against OpenAI and CEO Sam Altman in August. A series of chatbot-related deaths and lawsuits has prompted California and New York to introduce mandatory safety requirements, while China