AI study assistants can explain concepts, solve problems, and create custom study plans — all for free.

Best Free Tools

1. Kimi — Best for Reading

Price: Free
Platform: kimi.moonshot.cn

Use for:
- Upload textbooks/PDFs
- AI summarizes key points
- Ask questions about materials
- 2M token context (process entire books)

Example:

Upload "Economics 101" PDF.
Ask: "Summarize Chapter 3 on supply and demand"

2. DeepSeek — Best for Problem Solving

Price: Free
Platform: chat.deepseek.com

Use for:
- Math problem solutions (step by step)
- Code explanation
- Logical reasoning
- Practice questions

3. Quizlet AI — Best for Memorization

Price: Free (basic)
Platform: quizlet.com

Features:
- AI generates flashcards
- Spaced repetition
- Practice tests
- Study games

4. Khan Academy Khanmigo

Price: Free
Platform: Web

Features:
- AI tutor that guides (doesn't give answers)
- Math, science, programming
- Personalized learning

Workflow

1. Read with Kimi (upload textbook)
2. Understand with DeepSeek (ask questions)
3. Practice with Quizlet (AI flashcards)
4. Test yourself (AI generates quiz)

Summary

  • Reading/textbooks: Kimi
  • Problem solving: DeepSeek
  • Memorization: Quizlet
  • Guided learning: Khan Academy AI