Version 4.0 of 66 Thesis AI Writing is an online platform focused on assisting academic writing, providing AI-assisted writing services for various academic documents, from theses to journal papers. The platform utilizes advanced artificial intelligence technology to help users quickly generate paper outlines and content while supporting multiple subjects and languages to ensure rigor and compliance in writing. It also offers templates for literature reviews, abstracts, and acknowledgments, as well as plagiarism control services to meet high standards in academic writing.