Ask your PDF anything and get answers grounded in the page. Then let Tali quiz you on it, mark what you write, and resurface what you missed — because chatting with a document isn't the same as knowing it.
Upload a PDF freeChatting with a PDF is a great way in. Tali makes it the start of studying, not the end of it.
Drop in the paper, the textbook chapter, the manual, the slide deck — up to 30MB. Ask it anything and get answers grounded in the actual pages, with the source sitting right there so you can check them. Photos and screenshots of pages work too.
Tali reads the document in order and leaves you a run of short, titled notes — one idea each — instead of a single summary. The chat stays attached to each one, so a follow-up question never means pasting the chapter back in.
Hit "test me" and Tali generates questions from the PDF itself — and grades the open-ended ones. Miss one and it re-explains, hands you a similar question on the spot, and schedules the one you missed to come back before you'd forget it.
Most "chat with PDF" tools stop once you've had your questions answered. That's the easy half. The hard half — turning a document you can discuss into one you can reproduce under pressure — is where Tali picks up.
| Chat-with-PDF tool | Tali | |
|---|---|---|
| Ask questions and get answers grounded in the document | Yes | Yes |
| Summaries and notes from the file | Yes | Yes |
| Quizzes you on the PDF (multiple choice, fill-in-the-blank, open-ended) | — | Yes |
| Grades the answers you write and shows what you missed | — | Yes |
| Wrong-answer loop: re-explains, then gives a fresh similar question | — | Yes |
| Spaced repetition so the document actually sticks | — | Yes |
| Turns a photographed exam PDF into practice questions | — | Yes |
If all you need is a quick answer buried on page 40, plenty of tools chat with a PDF. If you need to still know it on exam day, that's the part Tali is built for.
Getting a clear reply from a document feels like learning and mostly isn't. Tali is built on the Feynman idea: you don't know it until you can produce it yourself. So after the chat, it makes you answer — and tells you where you were vague.
Type out a proof or an explanation and Tali grades it against the document, scores it, and tells you what your version left out. A chat tool will happily agree with you; Tali checks whether you're actually right.
In a chat tool, a gap in your understanding just sits there. In Tali, a missed question re-explains itself, spawns a fresh one to try, and enters spaced repetition — so the PDF's hardest parts resurface right before you'd forget them.
Not a generic bank that half-matches your material — the questions come from the PDF you uploaded, and from your past papers if you upload those too. Every minute of practice is aimed at what's actually in your source.
A research paper or a chapter you have to actually master, not just skim. Chat your way in to understand it, then let Tali test you until you could explain it without the PDF open.
Certification material, a compliance standard, a long technical manual. Ask it what you need, get notes you can revisit, and drill the parts you'll be assessed on.
If there's a test at the end, reading and chatting isn't enough — you need to be questioned, corrected and made to repeat the hard parts. Tali turns the PDF into that.
You get free tokens when you create an account, no card required — enough to upload your first PDF and get chat, notes and practice out of it. After that you top up when you need to. No subscription, no monthly fee; you pay only for what you generate.
Other tools stop at the conversation. Tali uses the same PDF to test you: it generates questions from the document, grades the answers you write, re-teaches what you get wrong, and schedules it back with spaced repetition. Chatting is the way in; learning to reproduce it is the point.
PDF, DOCX, PPTX, Markdown, plain text, and photos or screenshots of pages (PNG, JPG, WEBP, HEIC), up to 30MB per file. For a very large scan, upload it a chapter at a time — you'll be studying it that way anyway.
They're grounded in the file you uploaded rather than in whatever a model remembers, and the source sits right beside them so you can check. It's still AI — it can misread a table or flatten a nuance — so when something looks off, check it against the page and ask why it said that.
Yes. Tali works in English, Chinese, Spanish, Japanese, Korean, French, German, Portuguese, Russian and Italian — and it can give you notes and questions in your language even when the PDF is in another.
It's used to generate your own chat, notes and practice, and for nothing else. It isn't shared and it isn't sold. Delete it whenever you like and the notes generated from it are deleted with it.
Drop in a PDF and get notes you can actually study from — then let Tali quiz you until you can explain it.
Upload the chapter you have to know cold. Tali writes the questions and schedules them — what you miss comes back tomorrow, what you know comes back in a month.
Not generic questions — questions from the exact chapter you just read, marked by something that tells you what you missed.
Upload a past paper and Tali reads it question by question — then writes you a note for each exam point it tests. CFA, PMP, CPA, university finals.
Upload the same PDF you'd drop into NotebookLM. Tali turns it into quizzes, grades what you write, and keeps bringing back what you got wrong — so you don't just chat with your notes, you learn them.