How does the reading assistant work?

Select any text to get an explanation or a translation written under it, or ask in the chat beside the page. The AI has the whole document in context, so its answers refer to what you are reading.

Is the reading assistant free?

Yes. Reading never costs credits. AI actions such as explanations, chat replies, and making quizzes or flashcards use monthly credits, and the Free plan includes some every month.

An AI reading assistant for articles, PDFs, and papers

You read the original, and the AI works beside it. Select a sentence to have it explained or translated right beneath it, ask about the whole document, and turn what you want to keep into flashcards and quiz questions.

Start reading free Chrome Extension

The paper, as you read it

Test-enhanced learningPDF · p. 3 of 11

2. Results

A week later, the tested group recalled far more of the passage than the group that had studied it again.

ExplainTesting yourself beat rereading once the delay was long. Rereading felt more effective in the moment, but the effort of recalling is what made the material last.

The advantage held across both prose passages and word lists, and grew as the retention interval lengthened.

Translate · EspañolLa ventaja se mantuvo tanto en los textos en prosa como en las listas de palabras, y creció a medida que se alargaba el intervalo de retención.

These findings suggest that retrieval, not re-exposure, is the event that strengthens a memory. Educators who rely on repeated reading may overestimate what their students will retain.

A question about the whole thing

ChatTest-enhanced learning

What is the paper's main finding, and how strong is the effect?

Being tested on material leads to better recall a week later than studying it again, even though studying again feels more effective at the time. The gap was largest at the longest delay, and it held for both prose passages and word lists.p. 3 · Resultsp. 7 · Discussion

Ask anything

What the assistant does while you read

Explanations under the sentence

Select a phrase or a passage and the explanation is written right beneath it, where it stays for when you come back.

Questions about the whole document

Ask in the chat beside the page, about the text you selected or the whole thing. The AI has the full article, PDF, or transcript in context.

Reading in another language

Translate a selection in place, or translate a whole web page paragraph by paragraph, each translation under its original.

Articles, PDFs, videos, and files

Open web articles, PDFs, YouTube videos with their transcripts, Word and PowerPoint files, and images.

How it works

Open what you're reading
Paste a link, upload a file, or click the extension on the page you're on.
Read with the assistant beside you
Stay in the original. Select what you don't follow, or ask about the whole thing.
Keep what matters
Turn a passage into a flashcard or a quiz question. Each one links back to where it came from, and Winda schedules the reviews.

Reading you have to understand

Material you will be tested on, cite, or act on, where skimming is not enough.

Exam study material

Curriculum readings and study guides for exams like the CFA, with explanations beside the hard passages and questions written from them.

Academic papers

Definitions and derivations explained where they appear, and questions about how a section connects to the rest of the paper.

Language learning

Read articles in another language with the translation written beneath each paragraph, and ask about any phrase as you go.

Work documents

Specs, reports, and onboarding docs you are expected to understand, with the jargon explained where it appears.

Frequently asked questions

Web articles, YouTube videos, PDFs, Word documents, slide decks, images, and plain text snippets. Paste a link, upload a file, or use the Chrome extension on the page you're reading.

Read-it-later appSave articles, PDFs, and videos to read later AI quiz generatorTurn your material into multiple-choice questions AI flashcard makerReview key ideas with flashcards

Bring one article or PDF

Open it in the reader and ask your first question. Free to start.

Try for free

Free to start · No credit card needed