GenAI（Generative AI） is garnering attention as a technology where 'AI directly creates new value.' Differing from the classification tasks of traditional machine learning and deep learning, its implementation demands high computational power. Particularly when utilizing GenAI in small devices employed in IoT and edge computing, what methods should we opt for? In this session, we will revisit the foundations such as an overview of GenAI and prompt engineering, and introduce the current state of collaboration methods with devices including microcontrollers. We will explore the directions in which we can leverage GenAI in the embedded domain in the future.