It offers both a secondary-level curriculum (a lycée, with a student body of around 2.000), and a university-level curriculum (known as classes préparatoires, or prépas, also with about 900 pupils), preparing students for entrance to the eliteGrandes Écoles. At the yearly competitive entrance examinations for the scientific and business Grandes Écoles, students from the Lycée Kléber's classes préparatoires regularly have good results.
The lycée Kléber prepares students to sit for the baccalauréat général. They have to choose one of three streams (termed séries) in the penultimate lycée year. The streams for the baccalauréat général are as follows:
économique et sociale (economics and social sciences)