Many researchers believe that one of the most effective educational technologies is the «Flipped classroom». To evaluate the effectiveness of the «Flipped classroom» technology, own research was conducted. The research showed that there is a problem working with the material in non-auditorium conditions and some problems can be solved with the use of appropriate information technology. The work aims to develop a chatbot to increase the efficiency of the «Flipped classroom». The chatbot for Telegram was created. The chatbot, based on information from the database, conducts a dialogue with each student, periodically reminds him of the need to read the material, displays material and links to it, evaluates work with the material, issues test, and control questions to assess the comprehensibility of the material, saves work results, questions to the teacher in the database. Using the chatbot is aimed at increasing the student s involvement in the process of home preparation for the seminar. The data collected during the work with the bot, material, testing results, questions will allow the teacher to conclude that the students of the group are ready for the lesson. Due to the chatbot, the efficiency of «Flipped classroom» technology will increase.