The aim of this research is to compare the flipped classroom learning model assisted by Padlet and the blended learning model on critical thinking skills. The problem that will be studied is whether there are differences in the two dimensions of the learning model regarding critical thinking abilities. In this study, the independent variable (X) is the flipped classroom learning model assisted by Padlet. Meanwhile, the dependent variable (Y) is critical thinking. The research sample was taken from students at SMA Muhammadiyah 1 Surabaya. The research sample was taken from students who were normally distributed, had the same characteristics (homogeneous), and had the same average value. Then two groups (classes) were taken as samples two experimental group classes used a flipped class learning model assisted by padlet and two control group classes used a blended learning model. The data analysis technique used is the independent sample T-test statistical analysis technique. With a significance level of 0.05. The resulting Sig value is known. (2-tailed) of 0.025. The results show that there are differences in critical thinking abilities between the flipped classroom learning model, assisted by Padlet, and the blended learning model.