Special communication between representatives from science, technology and institutions is increasingly characterised by the use of Artificial Intelligence. Its use is highly complex not only from an information technology perspective, but also from a linguistic and communicative perspective. For this reason, this essay draws on a general model of special communication expanding it to incorporate Artificial Intelligence and taking into account the producers and recipients of subject-specific texts, these texts as such and their co-text, their general and subject-specific context and the corresponding knowledge, as well as the subject-specific sign systems and their media. For the first time, the model provides an overview of the entire phenomenon of special communication using Artificial Intelligence both from a linguistic and communication science perspective. It is fundamental for identifying individual problems and research areas as well as their multiple future interrelation.