Sweden and Switzerland are among the wealthiest countries in the world, but also two countries with different approaches to how to provide welfare. Sweden has followed a social democratic welfare model and Switzerland a liberal model. This has implications for how the education systems have been organised. The Programme for International Student Assessment (PISA) study makes it possible to compare the achievements of students in reading and mathematics. Students in Switzerland are significantly better than Swedish students in mathematics. In reading, Swedish students are significantly better than Swiss students. In both countries, girls are better readers than boys. The gender difference in reading is larger in Sweden than in Switzerland. Boys are better than girls in mathematics. The gender difference in mathematics is smaller in Sweden than in Switzerland. The difference in reading between natives and non-natives is considerably lower in Sweden than in Switzerland. Sweden is among those countries where the variance between schools is very low. In Switzerland the variation in student performance among schools is higher than the average in the Organisation for Economic Cooperation and Development. Both education systems may be regarded to be of high quality in an international perspective. The Swedish system has, with the exception of the gender gap in reading, produced a system that seems to have a higher degree of equity than the Swiss system.