TutorEva is a platform that utilizes artificial intelligence technology to provide college students with assignment help and exam preparation. By uploading files, images, or directly inputting questions, it offers detailed answers and step-by-step guidance. TutorEva combines the latest AI technologies, such as GPT-4, through a Knowledge Agent System (KAS) to ensure the reliability and accuracy of its solutions. It not only assists students in solving assignment problems but also offers features like a writing assistant and a course companion, comprehensively addressing learners' needs.