Jiuzhang Q&A: An AI Study Tutoring App Built on Its Own In-House Large Model

Jiuzhang Q&A is an AI study tutoring app developed on the back of Jiuzhang, its own in-house large model, and it gives students intelligent question-answering support across several different modes. The central design idea is that it does not simply place the finished answer in front of you. Instead, it separates the "explaining the problem" path from the "practising the problem" path: the explanation side leans on Socratic questioning to guide students towards the reasoning themselves, while the practice side focuses on diagnosing weak topics and adjusting difficulty dynamically. There is also a virtual classroom and a companion-style chat module, covering self-study and emotional regulation. The interface is clean and easy to operate, which makes it well suited to raising study efficiency during everyday learning and exam preparation.

Main Capabilities

Socratic problem explanation It uses guided questioning to prompt students to think, then layers follow-up questions so that students reach the method themselves rather than simply reading an answer. This approach puts more weight on building independent problem-solving ability, and it works best for students who are stuck at the very start of their reasoning and need to establish a framework for the problem first.

Ask about any step whenever you get stuck This targets the questions that pop up in the middle of solving a problem. It can solve individual questions in seconds and present the complete line of reasoning. Students can ask at any point while working through the steps, without having to finish the whole question first and go back over it afterwards, which resolves a local blockage efficiently.

Immersive study in a virtual classroom It offers AIGC interactive video with board-writing generated in real time, and students can interrupt at any point to ask a question and control their own pace of learning. It feels closer to a self-study class where you are always allowed to chip in, which suits students who need a coherent explanation but would rather not sit passively through a recorded lecture.

AI precision practice It first diagnoses which knowledge points are weak, then recommends practice material individually and adjusts the difficulty dynamically, while supporting both a standard mode and an exam-preparation mode. The goal is to concentrate practice effort on the areas that genuinely need work, instead of grinding through question after question indiscriminately.

Virtual companion AI chat Chat whenever you like, get answers to study questions, ease tension and relax your mood. It is not meant to carry the teaching load; its main role is to provide an emotional outlet during the gaps between long study sessions.

How to Use It

1. Clarify your current goal: establish whether you are trying to understand a new knowledge point, work through a specific question, or build systematic practice for an exam, because each of these three goals maps to a different module.
2. Choose how you want things explained: use Socratic problem explanation when you want to train your reasoning; when you already have an approach and are blocked at one particular step, use "ask about any step whenever you get stuck" and put that specific blockage on the table.
3. Enter the virtual classroom as needed: when you need a coherent walkthrough of the material, use the interactive video with real-time board-writing, and interrupt directly with a question wherever something is unclear.
4. Run one precise diagnosis: complete the diagnostic in AI precision practice, look at which knowledge points are judged weak, and then work through the recommended exercises one by one; switch to exam-preparation mode during revision periods so that it matches the demands of the exam.
5. Fit in companion conversation: when your study rhythm is interrupted or your stress is tightening, use the virtual companion AI chat to relax, then get back into the right state before carrying on.
6. Review at regular intervals: compare the diagnostic results with the exercises you completed, and confirm whether the weak points are genuinely narrowing.

Suitable Scenarios

• Previewing before class and reviewing afterwards, when you need to check quickly whether you truly understand
• Being stuck on a particular derivation step while working through a question, and needing the full line of reasoning immediately
• Systematic exam preparation, where you need to plan practice density and difficulty according to weak points
• Long stretches of solo study, where you want an immersive explanation you can interrupt and question
• When study pressure is high and you need an outlet for relaxation and talking things through that is not teaching-related

Limitations and Notes

• AI explanations are based on model-generated output, so students still need to judge for themselves whether the reasoning holds up, and the output should not be treated as an authoritative conclusion.
• Socratic problem explanation proceeds at a comparatively slow pace, so the experience is weaker if you are looking to get an answer fast.
• The effectiveness of precision practice depends on how accurate the diagnostic input is; the narrower the scope of the questions, the more usable the diagnosis will be.
• The virtual companion module is meant for emotional regulation, and it is not a replacement for talking to a teacher or a parent.
• AI tutoring addresses problems of understanding and practice efficiency; it makes no promise about the size of any improvement in your grades.