What is the best AI for students?

Most students do not need to pay: the free versions of ChatGPT, Claude, Gemini, Le Chat and Perplexity are enough to understand a lesson, practice and prepare research. The real choice is about how you use them: an AI that helps you learn is an asset, while an AI that writes your work for you can lead to plagiarism penalties.

What AI can actually do for your studies

Used well, an AI works like a tutor available at any hour. Here are the most useful and honest ways to use it:

• get a concept explained in a different way from your textbook, with examples, until it clicks;
• practice: ask for review questions, a worked example or a quiz on a chapter;
• organize your work: a revision schedule, or a dissertation outline to discuss with your supervisor;
• rewrite your own notes so they are easier to review;
• practice a foreign language in conversation;
• understand a mistake in a math problem or a piece of code.

What these have in common: you do the thinking, and the AI helps you do it better. For an overview of the assistants, our ranking of the best AI tools explains how we compare them.

The assistants to compare

Here are the main assistants useful to students, with data collected from the companies’ websites:

Assistant	Free	Paid from	Web search	Agent mode	Voice	Images
ChatGPT	Limited	$8/mo	Yes	Yes	Yes	Yes
Claude	Limited	$20/mo	Yes	Yes	—	—
Gemini	Limited	€4.99/mo	Yes	—	Yes	Yes
Le Chat (Mistral Vibe)	Limited	$5.99/mo	Yes	Yes	Yes	Yes
Perplexity	Limited	$10/mo	Yes	Yes	—	Yes
GitHub Copilot	Limited	$10/mo	—	Yes	—	No

Free tiers and student plans at a glance

Assistant	Free tier	Paid or student plan	Best study use
ChatGPT	Yes, limited	Go $8, Plus $20	All-rounder, memory, voice
Claude	Yes, limited	Pro $20	Reading long documents
Gemini	Yes, limited, Flash-Lite model	Google AI Plus, 4.99 EUR in France	Built into Google Docs and Gmail
Le Chat	Yes, limited	Student $5.99, verified students	Data hosted in the EU
Perplexity	Yes: 3 Pro Searches a day, 1 Research a month	Education Pro $10	Answers with sources
GitHub Copilot	Yes: 2,000 completions a month	Pro free for verified students	Programming
DeepSeek	Yes, fully free	No paid plan	Reasoning and math

Monthly prices collected on October 22, 2026; ChatGPT Go is the US price. For a closer look at free versions, see our pick of the best free AI.

Which assistant for which need?

To understand and review, the free versions of ChatGPT, Claude and Gemini are comparable. Gemini has an edge if you already work in Google Docs.

For research, Perplexity cites its sources under each answer, which makes checking easier. Our guide Perplexity: what to know and our Perplexity profile cover its limits. You still need to open and read the sources: an AI can summarize an article badly.

For programming, GitHub Copilot is the most direct tool, with the Pro plan free for verified students. English is the main language supported by its chat.

For privacy, Le Chat by Mistral stores data in the European Union by default and has a Student plan at $5.99. Remember to turn off training under Privacy: it is on by default.

For math on no budget, DeepSeek is entirely free, but its data is stored in China, so read our guide DeepSeek: what to know before using it.

Whatever tool you pick, check its privacy settings the first time you sign in. Most assistants let you opt out of having your chats used for training, and several offer a temporary chat mode. Avoid pasting in graded work with your name on it, health information or classmates’ assignments.

Before you sign up for a student plan

Student discounts look attractive, but a few checks save surprises. First, eligibility: each company verifies student status in its own way, and the rules can differ by country or type of school. Second, duration: Le Chat’s Student plan, for instance, lasts 12 months at most, so check what happens when that period ends. Third, what you actually get: compare the paid plan’s limits with what the free tier already gives you. The free tiers of two different assistants, used side by side, may well cover your needs without spending anything.

School and university rules

There is no single rule. Each university, college or school sets its own, and it can vary from one course to the next. Generally, you will find three situations:

1. AI is banned for a given assignment or exam.
2. AI is allowed with conditions: for brainstorming or language checks, as long as you disclose it.
3. AI is part of the assignment: you are asked to use it, then analyze its answers.

Either way, the reflex is the same: read your school’s academic integrity policy and each instructor’s guidelines, and ask when in doubt. Disclosing AI use when required is always safer than hiding it.

The risk of plagiarism and misconduct

At most schools, submitting AI-generated text as your own is treated as misconduct, just like copying a source without citing it. Other risks add up:

• Made-up sources. An AI can produce a hallucination: an article, an author or a quote that does not exist. A bibliography with a fake reference is an instant red flag for a grader.
• Detectors. Some schools use AI detectors to flag generated text.
• Oral checks. Work you cannot explain stands out quickly when you are asked about it.

How to study well with AI

A few habits make all the difference:

1. Ask for explanations, not answers: “explain why,” “give me a hint,” “check my reasoning.”
2. Verify every fact in your course materials, a textbook or a reliable source. Our guide to checking an AI answer gives a simple method.
3. Do not share personal data or other students’ work.
4. Keep a record of how you used AI, if your school asks you to disclose it.
5. Write it yourself, then ask for proofreading. To choose a writing assistant, see the best AI for writing.

Prompts that help you learn

How you phrase your request changes everything. Compare “summarize chapter 3” with these prompts, which keep you active:

• “Explain price elasticity as if I were a first-year student, then ask me three questions to check I understood.”
• “Here is my answer to the problem. Do not give me the solution: just tell me which step is wrong.”
• “I am reviewing the causes of the First World War. Quiz me one question at a time and correct each answer.”
• “Here is my essay outline. Which arguments look weak, and why?”
• “Act as an examiner and give me a ten-minute mock oral exam on this topic.”

In each case, you produce the answer and the AI acts as a grader or practice partner. It is also the easiest use to justify if your instructor asks how you worked.

Check yourself Your instructor allows AI for language checks but not for writing. Can you ask it to write your introduction and then edit it?

No. Writing the introduction is writing. Draft it yourself, then ask the AI to point out errors and unclear sentences, and fix them in your own words. When in doubt, ask your instructor.

Who should use what? Our verdict

• You want a free tutor: ChatGPT, Claude or Gemini on the free tier.
• You do a lot of research: Perplexity, free or with Education Pro.
• You study computer science: GitHub Copilot, free for verified students.
• You want a cheap paid plan with EU hosting: Le Chat Student.
• You want to know which assistant suits you: take our quiz in a few questions.