The IICA-TDLE Project, funded by the University Grants Committee of Hong Kong SAR, is an inter-university collaboration led by Lingnan University, in partnership with several UGC-funded institutions, including the Hong Kong University of Science and Technology, the Chinese University of Hong Kong, and the Hong Kong Polytechnic University. The project aims to promote the widespread adoption of virtual and blended teaching and learning by developing the IDEALGen.AI teaching design platform, which integrates AI technology to provide educators with a robust toolkit. By leveraging generative AI and large language models (LLMs), IDEAL-Gen.AI enables instructional designers to effortlessly create highly customized educational materials, thereby enhancing teaching efficiency and enriching the learning experience. The launch of IDEAL-Gen.AI marks a breakthrough in instructional design and content creation. Its core advantage lies in its unique automated instructional design feature, which can rapidly generate personalized learning activities, lesson plans, and assessment tasks based on the specific needs of educators. Compared to traditional manual instructional design methods, IDEAL-Gen.AI significantly reduces the time and effort required for content creation, enabling educators to focus more on improving teaching quality. The platform also features an automatic prompt generator that users can customize by applying filters for subject, learning domain, and academic level. IDEAL-Gen.AI is freely accessible to educators worldwide, reducing barriers to access and reflecting the project team’s dedication to making advanced educational technologies widely available. The platform is set to expand its functionalities and services to meet the diverse needs of educators. Plans are underway to introduce more templates and filters for AI-driven grading rubrics, exam questions, and assessment criteria, further streamlining the evaluation process. Additionally, the platform is dedicated to building a community of educators to encourage collaboration and the shared use of AI in instructional design.