How Preply combines AI and human tutors to personalize learning

Preply, an online language learning platform, has integrated OpenAI’s models to generate automated lesson summaries, personalized feedback, and custom exercises. According to the OpenAI Blog, this feature is designed to complement human tutors rather than replace them. AI generates post-lesson summaries highlighting a student’s strengths and areas for improvement, along with tailored practice materials. Tutors can review and adjust these AI outputs before sharing them with learners, ensuring accuracy and pedagogical relevance. The integration represents a hybrid approach: AI handles repetitive content generation and data analysis, while human tutors focus on nuanced instruction and emotional support. For developers building AI workflows, this case study illustrates how to combine large language models with human-in-the-loop oversight. It also shows practical strategies for personalization at scale, such as using learner performance data to dynamically create exercises. The application is not just about efficiency but about enhancing the learning experience through timely, relevant feedback. Preply’s rollout is incremental, starting with Spanish and English courses, with plans to expand. This balance of automation and human judgment offers a template for AI deployments in other skill-based domains.