Startup Iceland is a GPT (Generative Pretraining Transformer) constructed to support and mentor startup founders. It provides guidance and insightful discussions concerning various startup challenges and ideas. The tool uses ChatGPT as its underlying model and is designed in a conversational format to interact with users. The Startup Iceland GPT is a proactive mentor that covers a wide range of startup-related queries. It can assist in matters related to marketing strategies, provide information on funding options for startups, bring forward ideas to motivate teams, and offer advice on refining business models. By engaging in discussions with this GPT, startup founders are empowered to enhance their decision-making process and gain a clear vision of their business path. The Startup Iceland GPT fosters an innovative virtual environment where startup founders can hear and discuss objective and insightful advice on various startup aspects, helping them to overcome obstacles and grow their businesses. This GPT operates within the framework of ChatGPT and requires ChatGPT Plus for access. As a virtual startup mentor, it can be a valuable resource for rising entrepreneurs.