Downloadable computer software using artificial intelligence (AI) for performing generative text AI tasks and natural language processing AI tasks, and to produce written content based on a theme, text summaries, document question-answering and natural conversation simulation; Downloadable chatbot software using artificial intelligence (AI) for performing generative text AI tasks and natural language processing AI tasks, and to produce written content based on a theme, text summaries, document question-answering and natural conversation simulation; Downloadable software using artificial intelligence (AI) for simulating natural conversation; Downloadable software using artificial intelligence (AI) for summarizing texts; Downloadable software using artificial intelligence (AI) for writing content based on a theme; Downloadable software in the nature of a mobile application for including, accessing, using, and interacting with an artificial intelligence model to perform generative text AI tasks and natural language processing AI tasks and to produce written content based on a theme, text summaries, document question-answering and natural conversation simulation; Downloadable software in the nature of a mobile application for performing generative text AI tasks and natural language processing AI tasks and for writing content based on a theme, summarizing text, document question-answering and simulating natural conversation