Website - Knowledge platform with AI tool

I need to create a website that, after logging in and buying access, will allow you to watch videos, use e-learning, and most importantly, use our own industry-specific AI tool.

As for the AI tool, we would like to create something along the lines of https://www.blackbox.ai/, which we would feed with our knowledge and thus create a chat room through which visitors to the site will be able to create texts,strategy for themselves, but also ask how to solve a case, etc.

The challenge is sensitive data - in our vision, the user, after buying access, gets a guarantee that the data he/she enters into our AI chat room will not be used to improve AI, etc.

Through the site we would also like it to be possible to register participants for trainings and webinars. After logging in, users would also have access to their materials after the training in a tab like "my materials."