ChatGPT is a smart AI chatbot(聊天机器人) tool. It is developed by US company OpenAI. It is very popular all over the world. It is reported that over 89 percent of students have used ChatGPT to help with their homework. You can ask it to write stories and emails, translate languages, and answer all kinds of questions. 

Some schools in the US, Australia and France don't use ChatGPT. They are afraid that ChatGPT could make it easier for students to cheat (作弊) on homework. Some people also worry that ChatGPT could be used to give wrong information.

However, not all schools say "no" to ChatGPT. Some Canadian schools are making decisions on its use for both students and teachers. They will not stop the use of ChatGPT. Bhaskar Vira, a teacher at the school in Cambridge, said that not using ChatGPT is not clever. "We have to know that people will get used to an AI tool in our learning, teaching and examinations," he told a school newspaper.