SEO Writing AI is an AI-powered writing tool that helps users generate high-quality, SEO-optimized content for their marketing business. It offers features such as creating long-form content, detailed product listings, and optimizing content for SEO. The tool uses GPT-3 and other machine learning technologies to provide solutions for generating affiliate content. Additionally, it offers a checker tool to optimize content for valuable keywords and an add-on Amazon product list tool to help create better product descriptions. Users can create unlimited content with the tool's user-friendly interface.