EmailTree AI is a product that helps users personalize their GPT models. It enables users to build their own knowledge bases and provide customized answers, eliminating generic responses. This product offers the following advantages: 1. Provides unique, content-based answers; 2. Eliminates generalized answers and offers personalized solutions; 3. Supports customized development based on user needs. EmailTree AI's pricing is determined by user requirements and focuses on providing high-quality personalized answer services.