For students, exam-takers and researchers
Confu is an AI tutor that works from your own material: your notes, textbooks and papers. It plans what to learn, answers the doubts you highlight, quizzes you before exams, and remembers what you've understood.
Free to start · Works with any text PDF · Your key, used only for you
See it work
Select the sentence you don't get and ask why. The answer works from your own PDF, and the page it cites opens with a click.
The real Confu workspace. The tutor's reply is a sample answer.
Three ways to learn
Every session starts by asking what you're there for, and changes how it helps.
Study
Tell Confu what you want to be able to do and by when. It maps your PDFs into a phased plan, uses them where they help, and fills the gaps with lectures and readings.
Exam prep
Upload your college notes and past papers. Get exam-style questions written from them, marked instantly, each linked to the page with the answer.
Papers
Add papers by arXiv ID, DOI or title. No PDF hunting. Read them with Keshav's three-pass method, with a coach that pushes you to think.
In every session
Select any passage to ask a doubt, summarise it, see its context, or have it explained simply.
Drag over a chart, table or equation. A vision model reads it, and the tutor explains it.
Answers come from your material with page references you can click, so you can always check.
It tracks what you understand and where you struggle, so it builds on that instead of repeating itself.
Bring a textbook, lecture slides and a paper together. The tutor searches across all of them.
Off-topic? It answers briefly and steers back. Stuck? It changes how it explains rather than repeating.
How it works
Upload PDFs (notes, textbooks, slides), or add papers by arXiv ID or DOI.
A learning goal, an exam date, or a research question. That's what keeps the tutor focused.
Highlight, ask, practise and explain back. Confu tracks your progress as you go.
Our approach
Confu won't do your learning for you. It's built on a simple belief: you understand something when you can explain it, apply it and spot what's wrong with it. So it asks as much as it answers.
Grounded, and honest about limits
Answers cite the page they came from. When something isn't in your material, it says so. AI can still be wrong, so check what matters.
Your key is yours
Your Groq key is encrypted, used only for your requests, and never shared, sold or logged.
No ads, no tracking
No advertising, no analytics cookies, and we don't train AI models on your notes.
Your data, your call
Delete a session and its PDFs, notes and conversations go with it. Export everything, or delete your account, from Settings.
Plans
Every feature is in both. The only difference is whose AI key does the work.
Everything Confu does, on your own Groq key.
Starts with 10 free prompts. After that, add a free Groq API key.
No API key, no setup. Just learn.
Sign in, then request it in Settings → Plan.
Questions
Yes. Every account starts with 10 free prompts on our keys, no setup. After that, Free runs on your own Groq API key, and Groq has a free tier, so you still don't pay anyone. Pro, in early access, keeps running on our keys.
On Free, it keeps Confu free and makes the AI's usage yours: you can see exactly how much you've used and what's left in Settings. Getting a key takes a minute at console.groq.com. On Pro you don't need one.
The same Confu, running on our own Groq keys: no API key, no setup, with a daily fair-use allowance you can see in your account menu. It's in early access. Create an account, then request it in Settings → Plan.
Roughly 25–50 tutor answers a day, fewer for maths-heavy notes, as an estimate. Confu shows what's left of today's allowance in every session.
It's checked with Groq, encrypted before it's stored, and used only to run the requests you make in Confu. It's never shared, sold or logged, and you can remove it any time. Details are in the privacy policy.
Any PDF: notes, textbooks, slides, papers, past papers. Scanned or phone-photographed pages, including handwriting, are read by a vision model when you upload them, so the tutor can search and cite them too. Very messy handwriting may come out partly illegible.
Yes. That's why every answer points to the page it came from, and why Confu asks you questions instead of only giving answers. Check anything important against your course material.
Free to start. Bring a PDF, a paper ID, or an exam date.