Best AI Tools for Students in 2027
The best AI tools for students in 2027 cost from $0 to about $20 a month, and the smartest move is to claim the free tiers and student deals first, because the biggest saving in this list is a full year of Google AI Pro worth $239.88 at list price. An AI study tool is software that helps a student understand, draft, check or organise coursework, from explaining a hard concept to proofreading an essay or working through a maths problem step by step. The nine tools below were picked because they help with real coursework, their prices were verified in November 2026, and each one states its free tier or student deal honestly.
One rule comes before any tool on this list: follow your school's rules on AI. A tool that helps you learn is useful; a tool that writes an assignment you submit as your own can cost you the grade, or the course. Use these tools to understand faster, then do the work yourself.
Best AI tools for students in 2027 at a glance
| Tool | Best for | Free tier | Student deal or paid from |
|---|---|---|---|
| ChatGPT | Explaining and drafting | Yes | Plus $20 per month; student offer expired 31 Oct 2026 |
| Claude | Long readings and essays | Yes | Pro $20 per month; no student discount found |
| Gemini student plan | Study inside Google apps | Yes | AI Pro free for 12 months (US, redeem by 31 Dec 2026) |
| Notion AI | Notes and revision | Yes, AI trial only | Business $20 per member per month (annual) |
| Grammarly | Proofreading essays | Yes | Pro $12 per month (annual); student year reported at $72 |
| Khanmigo | Guided tutoring | Free for teachers | $4 per month or $44 per year (US only) |
| Otter.ai | Lecture notes | Yes, 300 minutes a month | Pro $8.33 per month (annual); 20% student discount reported |
| Wolfram Alpha | Maths and science answers | Yes, basic queries | Pro about $60 per year; 30% student discount reported |
| Perplexity | Research with sources | Yes | Pro $17 per month (annual); Education Pro reported at $10 |
Prices are US list prices before tax, checked in November 2026. Where a student price is labelled as reported, it comes from third-party reporting rather than the vendor's own pricing page, so confirm it before paying.
1. ChatGPT
ChatGPT is the most useful all-round study tool because it explains concepts in plain language, quizzes you, summarises readings and drafts outlines. The free plan costs $0 with daily usage caps that OpenAI does not publish as a number. Plus costs $20 a month for higher limits and deeper research features.
2. Claude
Claude is the best chatbot for long readings and essay work, because it handles big documents well and writes in a calm, structured style. The free plan costs $0 with a baseline allowance that resets every five hours. Pro costs $20 a month, or $17 a month billed annually, and gives at least five times the free plan's usage.
3. Gemini student plan
Gemini's student plan is the best deal in this list, and it should be the first thing an eligible student claims. US college students aged 18 or older can get Google AI Pro free for 12 months, which is worth $239.88 at the $19.99 monthly list price. You must redeem it by 31 December 2026, verify your student status through SheerID with a school email, and add a payment method; the plan renews at $19.99 a month after the year unless you cancel. Related: Gemini free tier Flash-Lite downgrade.
4. Notion AI
Notion AI is the best tool for keeping notes, revision plans and coursework in one searchable place. It can summarise lecture notes, turn a messy page into a study plan and answer questions from your own notes. The free plan costs $0 but includes only a limited trial of AI.
5. Grammarly
Grammarly is the proofreader most students should install first, because it catches the errors that cost marks: spelling, grammar, punctuation and tone. The free plan costs $0 and covers basic checks plus 100 AI prompts a month. Pro costs $12 per member a month on annual billing, billed as $144 a year, or $30 billed monthly, and adds full-sentence rewrites, tone changes, plagiarism detection and 2,000 AI prompts a month.
6. Khanmigo
Khanmigo is Khan Academy's AI tutor, and it is the only tool in this list built to teach rather than to answer. It guides students with questions instead of giving direct answers, which is called Socratic tutoring, and it is wired into Khan Academy's free lessons and practice. Teacher tools are free. Related: AI tools for teachers.
7. Otter.ai
Otter.ai records lectures and turns them into searchable transcripts with summaries, so revision starts from a full set of notes instead of half-remembered fragments. The Basic plan is free with 300 transcription minutes a month and a 30-minute cap per conversation. Pro costs $16.99 per user a month, or $8.33 a month billed annually, and raises the limit to 1,200 minutes a month with 90-minute conversations.
8. Wolfram Alpha
Wolfram Alpha is a computational knowledge engine, which is software that calculates exact answers to maths, science and data questions instead of chatting about them. Ask it a calculus problem and it shows the steps; ask it a chemistry question and it gives the numbers. The free tier covers basic queries but not step-by-step solutions.
9. Perplexity
Perplexity is the research tool for essays and projects, because every answer comes with cited sources you can open and check. The free plan costs $0 with 3 Pro Searches a day and 1 Research query a month. Pro costs $20 a month, or $17 a month billed annually, and adds extended research, a model picker and file analysis.
How to build a student AI stack for under $20 a month
Start with the free tiers of ChatGPT, Claude, Grammarly and Perplexity, add Otter free for lectures, and claim the Gemini student year before 31 December 2026 if you are eligible. That stack costs $0 and covers explaining, drafting, proofreading, research and lecture notes. Add Khanmigo at $4 a month if you need a real tutor, and Wolfram Alpha Pro if your course is maths or science heavy. Related: AI tools for real estate agents.
Key Takeaways
- Claim the Gemini student year first: Google AI Pro free for 12 months for eligible US college students, redeem by 31 December 2026.
- ChatGPT's four-free-months student offer expired on 31 October 2026, so do not count on it.
- Free tiers cover most student work: ChatGPT and Claude for explaining, Grammarly for proofreading, Perplexity for cited research.
- Khanmigo at $4 a month is the only true AI tutor here, and Wolfram Alpha Pro is the one for exact maths and science answers.
- Student prices reported for Grammarly, Otter and Perplexity were not confirmed on vendor pages, so verify before paying.
- Follow your school's AI rules: use these tools to learn, not to submit AI-written work as your own.
Conclusion
The best AI tools for students in 2027 start free and stay cheap: a free chatbot for explaining, a free proofreader, a free research tool with sources, and the Gemini student year for anyone eligible. Add Khanmigo for tutoring or Wolfram Alpha for STEM work, and pay for only the one tool whose limit you hit every week.
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