ChatGPT is a very powerful tool, but it is not all-purpose. You should be aware of the following points. Accuracy of information: ChatGPT generates answers based on learning data, so the information is not necessarily accurate. When making important decisions, you should always collect information from multiple sources and make your own judgment. Bias: ChatGPT may reflect biases contained in the learning data. Caution is required as answers may be generated that are biased toward a particular perspective or opinion. Creativity: ChatGPT can generate creative sentences, but it does not have the creativity of a human. It is necessary to understand that it is merely a tool and that it is meant to assist human creativity. Summary ChatGPT is a technology that has the potential to greatly change our lives and work. By using ChatGPT effectively, you can improve your productivity in various fields by referring to the use cases and best practices introduced in this article.