Hi AI4ENG, Custom GPTs are designed to run within ChatGPT and can’t be embedded directly into an external website.
For a website where your users can interact with an assistant, the supported approach is to build the experience using the OpenAI API and configure its instructions, tools, and context to match the behavior you need. GPTs in ChatGPT | ChatKit
Since this topic has been inactive for some time, we’re closing it now. If you need help with your current API implementation, please start a new topic with the relevant, non-sensitive details.