Grammarly's AI Detector is a powerful tool designed to identify AI-generated text, including content from models like GPT-4, ChatGPT, and others. It provides users with a clear percentage score indicating how much of their text appears to be AI-generated, allowing for adjustments to enhance authenticity. This tool promotes responsible AI use by helping users disclose AI contributions in their writing. Additionally, it integrates with Grammarly's suite of writing tools, including plagiarism detection and citation generation, ensuring that submissions are original and properly credited.