OpenPaper is an innovative AI-driven platform tailored to enhance the way researchers read, annotate, and comprehend academic literature. The tool features a dual-pane layout that enables users to view the complete text of a paper alongside an interactive AI assistant. This assistant is designed to provide reliable citations for its information, promoting both transparency and reliability. Among its notable capabilities are inline annotation tools, audio summaries of research papers, and the functionality to discover related studies through OpenAlex. Researchers can upload their documents to create a personalized knowledge repository and can easily switch between different AI models, such as GPT-4 and Gemini 2.5 Pro. Additionally, OpenPaper encourages collaboration by allowing users to share annotations with one another, fostering a community of scholars working together to advance their fields. This integration of various features makes OpenPaper a comprehensive resource for academic research.