Riiid, established in 2014, is a leading provider of AI tutor solutions that aims to transform the education market through innovative AI technology. The company launched its first commercial product, Santa TOEIC, in 2017, which utilizes a deep learning algorithm and has attracted over one million users in South Korea, demonstrating significant effectiveness. Riiid's AI solutions are designed to replace traditional textbooks and lectures, offering personalized tutoring that surpasses the performance of human tutors while being cost-effective. The company operates Santa TOEIC in Japan and has introduced Santa SAT in Vietnam, with plans for further expansion into new testing areas and geographical markets. By providing adaptive assessment platforms that deliver personalized feedback and targeted learning resources, Riiid empowers students to identify their strengths and weaknesses, track their progress, and achieve their educational goals. Through its efforts, Riiid is driving the democratization of education and reshaping the learning landscape.