Ulrain is a tool that allows users to quickly and easily create custom chatgpt applications with private data. It provides access to over 100 data sources and various large language models, such as GPT-4, GPT-NEOX and FLAN, allowing users to precisely adapt their models to their private entrepreneurial data. It is also characterized by reinforced science on the basis of feedback from people, safe implementation options and trouble-free integration as a prompt and interview service. Ulrain offers full control over storage and management of private user data, thus ensuring the highest level of confidentiality and security. Thanks to the flexible tools for fine tuning, users can optimize their models to better match their specific business needs. Ulrain allows you to create advanced interactive applications in which users can give instructions, ask questions or ask for problems related to their individual data. Thanks to a wide range of language models, users can create applications that are able to handle a wide range of applications, from simple chats to complex natural language processing tasks. Ulrain is an innovative tool that opens new possibilities for users, enabling the creation of advanced chatbot applications that comply with the individual needs and requirements of a given organization.