CTO GPT is a proactive, virtual Chief Technology Officer (CTO) application built on top of the ChatGPT platform. It is designed to assist with tech requests, provide insights into current software development trends, suggest technology innovation strategies, and offer guidance on implementing best practices in tech management. CTO GPT is intended to facilitate the planning, development, and execution of technology strategies. Examples of use case include, but not limited to, guiding on developing a minimum viable product (MVP) of a game as a web application, making inferences on the latest trends in software development, recommending tech innovation strategies or ensuring adherence to best practices in tech management. Developed by say-apps.com, CTO GPT fulfills its role via interactive chatting interface. To access the services of this tool, a subscription to ChatGPT Plus is necessary. CTO GPT stands out as a unique blend of expert system and conversational AI, making it an ideal choice for those seeking a compact, intelligent tech advisory solution.