Question: I need a system to check student assignments for AI-generated content and maintain academic integrity.

Turnitin is a top option, with a suite of AI writing detection technology to spot AI-generated content and flag plagiarism. It also offers tools like Feedback Studio for customized feedback and Gradescope for grading, so it's a good option for institutions trying to crack down on academic dishonesty. Turnitin also offers digital exam delivery and advanced plagiarism detection, so it's a good option for those looking for a strong approach to academic integrity.

Another strong option is Compilatio, which offers a plagiarism detection system designed to prevent and detect AI-generated content in student submissions. It offers features like support for multiple languages, detailed reports and integration with widely used learning management systems like Moodle and Canvas. Compilatio's student interface, Compilatio Studium, is designed to help students understand the value of original work and to promote academic integrity.

Copyleaks is another option, with a suite of AI-powered tools to spot plagiarized and AI-generated content. It supports multiple languages, integrates with Learning Management Systems and is GDPR compliant for data protection. The company is geared for institutions trying to protect original content and grappling with the issues of generative AI.

If you're looking for a free, multilingual option, X Detector offers a tool to detect AI content. It works in nine languages and uses multiple techniques to try to get the best results. It's good for students, teachers and bloggers who want to make sure their work is their own, and it's a free service.