OpenAssistantGPT is an innovative open-source platform that enables users to create custom chatbots using OpenAI Assistant technology. Designed for seamless integration, it simplifies the process of embedding chatbots directly into websites. To deploy a chatbot, users only need to provide the tool with their website's URL, and it handles the rest. OpenAssistantGPT leverages various versions of the OpenAI Assistant, including GPT-4 and GPT-3.5, to power its chatbot functionalities. The platform supports effortless integration with minimal coding requirements, reducing implementation costs. Notably, it operates on an open-source model, with its code openly available on Github. This empowers users to enhance and modify the tool according to their specific needs. There are no additional charges beyond the OpenAI API key, ensuring users retain full control over their data and its management. Moreover, OpenAssistantGPT is compatible with popular website platforms such as WordPress, Shopify, Squarespace, and Wix. It offers flexible plans tailored for personal projects, teams, organizations, and large-scale deployments, ensuring scalability and adaptability.