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The best AI for studying, and what it costs
The most useful AI for studying works from your own class materials: it turns notes into quizzes and flashcards, explains a problem step by step and checks your answers. Most of it is free. U.S. college students can also get Google’s $19.99 AI Pro plan free for a year. Here is what each option does and what it costs.
Checked October 18, 2026 against each company’s own plans and help pages
| What it does for studying | Free? | Paid, a month | |
|---|---|---|---|
| Google Gemini | Quizzes and flashcards, audio overviews, step-by-step explanations, feedback on your work | Yes, all of these on the free plan | AI Plus $4.99, AI Pro $19.99 (free for a year for U.S. college students) |
| Gemini Notebook | Answers and audio overviews built from the sources you upload | Yes | More notebooks and audio overviews with a Google AI plan |
| ChatGPT | Study mode, explanations and help with photos you upload | Yes, study mode included | Go $8, Plus $20, Pro from $100 |
| Khanmigo | A tutor that guides you through Khan Academy’s lessons, writing and coding | Free for teachers | $4 a month or $44 a year |
| Quizlet | Flashcards, practice tests, textbook solutions and its Learn mode | 7-day trial with a yearly plan | Plus $35.99 a year, Plus Unlimited $44.99, Family $83.99 for up to 5 accounts |
| Claude | Learning mode: asks questions so you find the answer yourself | Through a university’s Claude for Education plan | University plans; Claude Pro is $20 for individuals |
Google Gemini: the most study features for free
Gemini’s free plan includes quizzes and flashcards, audio overviews and Deep Research, so you can upload notes and get a practice quiz or a spoken summary without paying. Google’s student page suggests prompts such as a practice quiz from your class notes, a step-by-step walk through a calculus problem, or feedback on an essay against your rubric.
Free AI Pro for college students. Eligible U.S. college students aged 18 and over can get Google AI Pro free for one year, with four times the free usage limits and 5 TB of storage. You must sign up by December 31, 2026 and verify you’re a student each year. A payment method is required, and unless you cancel, the plan then costs $19.99 a month, so set a reminder before the year ends.
Gemini Notebook: answers from your own sources
Gemini Notebook, Google’s research and writing assistant at notebooklm.google, works from the documents you add, such as lecture notes, readings and slides, so its answers come from your course materials. It’s free; Google’s paid plans add more notebooks and audio overviews.
ChatGPT: free explanations and practice
ChatGPT includes study mode on every plan, the free one too, OpenAI’s pricing page shows, and its app explains topics and reads photos you upload, such as handwritten text. On the free plan, uploads and deep research are limited. Go ($8 a month) allows more uploads and may include ads; Plus ($20) adds OpenAI’s stronger models and fuller deep research. OpenAI also offers ChatGPT for Teachers, free for verified U.S. K–12 teachers through June 2027, and ChatGPT Edu for universities.
Tutors that make you think: Khanmigo and Claude
Khanmigo, Khan Academy’s AI tutor, offers personalized tutoring on Khan Academy’s lessons, guided writing practice with feedback, and coding help. It costs $4 a month or $44 a year for learners and families, and is free for teachers.
Claude’s learning mode works like a tutor too: it asks questions that help you reach the answer yourself. Anthropic offers it through Claude for Education, a plan universities buy for their students, faculty and staff, so check whether your school has one.
Quizlet: practice tests and textbook solutions
Quizlet’s paid plans are billed yearly. Quizlet Plus ($35.99 a year) gives you 3 practice tests, 3 Q&A or textbook solutions and 20 rounds of Learn questions a month, without ads. Plus Unlimited ($44.99 a year) removes those limits, with millions of textbook solutions. Family ($83.99 a year) covers up to 5 accounts. The 7-day free trial comes only with a yearly plan and turns into a yearly charge unless you cancel.
What studying with AI costs
Start with the free plans. Pay only when you keep hitting limits, for example with long uploads before exams.
Using AI to study well
- Ask to be quizzed, not told. A practice quiz from your notes shows what you don’t know yet; a summary only feels like learning.
- Work from your materials. Upload the course notes or readings so answers match what your class covers.
- Check what matters. AI can be confidently wrong. Compare key facts and formulas with your textbook or teacher.
- Know your school’s rules. Many schools and courses set their own rules on AI for homework and essays.
Questions
What is the best free AI for studying?
Google Gemini has the most study features on its free plan: quizzes, flashcards and audio overviews from your own notes. ChatGPT’s study mode is free too. Gemini Notebook is the pick for working from your course sources.
Is Gemini free for students?
Gemini’s free plan is free for everyone. Eligible U.S. college students aged 18 and over can also get the $19.99 Google AI Pro plan free for a year if they sign up by December 31, 2026.
Which AI is best for math homework?
Use one that explains step by step and lets you check your own work: Gemini, ChatGPT and Khanmigo all do. Khanmigo tutors you through Khan Academy’s own math lessons.
How much is Quizlet Plus?
$35.99 a year for Quizlet Plus, $44.99 for Plus Unlimited and $83.99 for Family, which covers up to 5 accounts. The free trial lasts 7 days and only comes with a yearly plan.
Is Khanmigo free?
For teachers, yes. Learners and families pay $4 a month or $44 a year.
Sources
- Google: Gemini for students (student offer and its terms)
- Gemini Apps limits and features (what the free plan includes)
- Gemini subscriptions (plans, Gemini Notebook)
- ChatGPT pricing and ChatGPT on the App Store
- Khanmigo pricing and Quizlet plans
- Claude for Education and Claude plans