Core Insights - Quark App launched an upgraded learning product called "Quark Teacher," which functions as an AI tutor capable of teaching, grading assignments, creating questions, and finding exam papers [1][3] - The product's main feature is its ability to provide personalized instruction based on students' historical performance and learning needs [1][4] Group 1: Product Features - Unlike traditional question-answering tools, "Quark Teacher" offers systematic guidance similar to that of a human teacher, providing targeted one-on-one tutoring based on the student's learning stage and knowledge mastery [3] - The AI tutor can break down problems into knowledge points and exam points, helping students progress from understanding individual questions to mastering types of questions [3] - In grading assignments, "Quark Teacher" identifies weaknesses and offers learning suggestions, along with intelligently recommending similar questions for practice [3] Group 2: Personalized Practice - Students can request specific types of practice questions or local exam papers, and "Quark Teacher" generates suitable exercises based on the student's location and learning ability [4] - The product addresses a common issue with generic AI tools that often produce either overly simple questions or incorrect ones due to hallucination problems [4] - The effectiveness of "Quark Teacher" is supported by a robust data foundation, including a billion-level professional question bank and millions of local school exam papers, allowing real-time adaptation to students' learning levels [4] Group 3: Technological Foundation - The product is built on an upgraded Quark Lingzhi learning model, which utilizes advanced methods such as instruction fine-tuning and reinforcement learning [4] - The model has demonstrated exceptional reasoning and explanation capabilities, particularly in solving complex subjects like mathematics and physics, achieving top scores in media evaluations of high school math questions [4] Group 4: Promotional Strategy - To assist students in efficient exam preparation, Quark plans to distribute 10 million "Quark Learning Membership Seasonal Cards," which provide access to extensive learning resources and the new capabilities of "Quark Teacher" [4]