Getting Started with Plexi AI

The AI Assistant helps you ask questions about study materials.

It is useful for:

• Understanding hard topics
• Summarizing units
• Making revision points
• Preparing viva questions
• Finding which file contains a topic

Before You Start

You need:

• An AI API key saved in Plexi settings.
• A selected semester.
• A selected subject.

If you have not added an API key yet, read Setup Your AI.

Start a Chat

1. Open Plexi: https://plexi.cosmeta.tech
2. Click Chat.
3. Select your semester.
4. Select your subject.
5. Type your question.
6. Press send.

Plexi will show sources checked when it finds relevant material chunks.

Ask Better Questions

Specific questions get better answers.

Instead of	Ask
"Explain everything"	"Explain Unit 1 of Computer Network in simple points."
"Important questions"	"Give 10 likely viva questions from Compiler Design Unit 2."
"What is this?"	"What is lexical analysis in Compiler Design?"
"Summarize"	"Summarize the uploaded OS scheduling notes."

Good Prompt Examples

• "Explain this topic in simple language: deadlock."
• "Make short exam notes for Unit 3."
• "Give definitions I should memorize."
• "Create a 30-minute revision plan for this subject."
• "Compare TCP and UDP using the uploaded Computer Network materials."
• "List formulas or key terms found in the uploaded notes."

How Answers Are Made

When you ask a question:

1. Plexi searches the selected semester and subject materials.
2. It finds the most relevant text chunks.
3. It sends your question and those chunks to the AI provider you selected.
4. The AI writes an answer using that context.

This process is called RAG, short for Retrieval-Augmented Generation. In simple words: Plexi first retrieves useful notes, then the AI generates an answer.

When the AI Says It Cannot Find Something

This can happen when:

• The topic is not in the uploaded files.
• The file is uploaded but not indexed yet.
• The question is too broad.
• The topic uses a different name in the notes.

Try asking with the unit number, exact topic name, or file name.

Save Your Chat

As Plexi Currently Does not save your chat

The app includes a Save as PDF option in the Chat interface when messages are present.

Use it for revision notes, but check important answers against the original material before exams.

Important Reminder

Plexi is a study helper, not a replacement for your teacher, textbook, or official syllabus.

For marks, assignments, and exams, verify important facts with the uploaded files or official course material.