In 1951, Aichinger was invited to join the writers' group Gruppe 47, a group which aimed to spread democratic ideas in post-war Austria. She read her story "Spiegelgeschichte" aloud at a meeting of the group, and leading group members such as Hans Werner Richter were impressed with the unusual narrative construction. The following year, she won the group's prize for best text, becoming the first female recipient. In 1956, she joined the Academy of Arts, Berlin. She was also a guest lecturer at the German Institute at the University of Vienna, teaching on literature and psychoanalysis.