At the age of 15, Soto signed with Click Model Management and began modeling during summer vacations. Weeks after being signed, she traveled to Paris where she appeared in a layout for Vogue shot by Bruce Weber. She returned to Northampton after the summer to resume her schooling and would continue to model on occasion until she graduated from high school. She later appeared on the covers of American and British Vogue, British Elle, Mademoiselle, Glamour and Self magazines.