The introduction of artificial intelligence in Interior designing domain has completely changed the layout of designing. Traditional ways of hand-made designs and drawings has passed and computer-aided design tools have been introduced. The visualization of designs and the precision for modern designing styles has been very vital in designing industry. AI tools recently has been very successful in efficiently generating exquisite interior designs. However, existing models still lack the ability to give accurate responses to queries regarding some interior designing components like building materials, colour combinations, architectural planning etc. Models like GPT-4o have been very efficient in interior designing basics but still distant from being used as a domain specific chatbot for particularly Interior Designing domain. As we know, interior designing also depends upon cultures, traditions and weather conditions too fir a particular place or environment. Hence, this research paper includes the fine-tuning of OpenAI’s GPT-4o model to create a chatbot for particularly interior designing domain. This project aims to develop an AI chatbot which will be more capable than existing models regarding building materials, architectural designs, furniture arrangement, cultures, colour combinations etc. By customising the model with our vast dataset, including prompts and completion, the model will enhance the user experience with accurate and real-time responses.