Most of the companies have replaced some of their employees with GBT chat application

It is true that many companies have started to use AI-based chat applications like ChatGPT to automate certain tasks and reduce the need for human labor. These applications can be used to automate customer service, provide information to customers, and answer frequently asked questions. However, these applications are not capable of performing many of the tasks that people are great at, such as critical thinking and problem solving. Additionally, some of the tasks performed by humans are difficult to automate, such as customer service, so they are unlikely to be replaced completely.