SapyoraSynthesis
The complete article, in chapters, clarified with definitions, mechanisms, examples and pitfalls.
Reading± Audio
Sapyora
Turn any video, podcast or text into knowledge that stays with you.
Add a YouTube video or a text, in any language. Sapyora turns it into a complete study material in your language: a chapter-by-chapter synthesis, key ideas and cognitive foundations (principles, mental models, abstractions, claims, mechanisms and actions). Everything is kept in your personal library.
One source (any)You get all of theseYou get all
YouTube lectureYouTube video
orYouTube playlistPlaylist
orPDF or text (e.g. book, article)PDF or text
Synthesis (clear article, in chapters)Synthesis
+Key ideas (tied to context)Key ideas
+Foundations (e.g. principles, models)Foundations
A real result, not a sample
This is exactly how it looks in your library
A real material, just as it appears in the library. You can read it in full right here, and the menus, the table of contents and full screen work as they do in the app.
SapyoraOpen to everyone, no account
Chronic Cortisol Exposure: Evaluating Claims About Inflammation, Brain Health, and Bone Loss
The material evaluates Dr. Elizabeth Bright’s claims about cortisol, including its effects on inflammation, brain structure, bones, edema, blood sugar, and visceral fat, as well as the proposed effects of caffeine, tea, sugar, cannabis, and high-fat diets. The analysis finds that chronically excessive cortisol can be harmful, particularly in conditions such as Cushing’s syndrome, but argues that many findings come from unusually high administered doses or pathological states and should not be generalized to ordinary daily fluctuations. Evidence for caffeine, tea, sugar, cannabis, and ketogenic diets is context-dependent or inconsistent. The concluding recommendation is to prioritize sleep, body weight, exercise, and general health rather than pursuing cortisol reduction in isolation.
Sound familiar?
Which problem does it solve for you?
I forget what I watched
You spend hours in lectures and podcasts, but a week later you remember almost nothing.
Sapyora organises the material into clear explanations and key ideas you can easily find again.
You retain what matters and find it any time in your library.
I only understand the surface
You can go through an entire material and still be left with only the surface idea.
You get definitions, mechanisms, principles and mental models tied to the examples in the material.
You understand more deeply, with more nuance, and faster.
Summaries tell me too little
A summary reduces the material to a few points: you learn what was said, but not why or how it works.
Sapyora rebuilds the whole explanation, with mechanisms and arguments, tied to the original source.
You understand the subject, not just hear about it.
The source is in a language I don't know
Good ideas often come in a language you have to work hard to follow.
You read the material in the interface language, whatever the language of the source.
You learn from sources around the world without losing the nuances.
I save, but never read
You save materials for later, but never open them again and can't find the idea you needed.
Sapyora organises them into a personal library you can search.
You find exactly what you're looking for in seconds.
I can't tell what AI added
When AI rewrites a material, you can't tell what comes from the source and what it added.
Sapyora highlights, on request, exactly the text added by AI.
You read with more confidence and can check where things come from.
My notes are scattered
You learn from many sources, but the knowledge stays scattered across notes you never open again.
Sapyora gathers claims, mechanisms, actions, principles, models and abstractions into a single library.
What you learn stays organised and grows with you.
I have saved PDFs I never read
You have dense PDFs and articles saved, but never get around to reading them.
You paste the text or attach the PDF, and Sapyora turns it into a structured article.
You get to the essence quickly without losing the mechanisms and nuances.
I don't connect ideas
You study each subject in isolation and don't notice that the same idea explains things in different fields.
Sapyora names and consolidates all six types of cognitive foundations that recur across your materials.
You connect ideas across fields and understand more deeply.
I always start from scratch
In every new field you feel you're starting over, even though some patterns are already familiar.
Sapyora extracts the transferable mental models you can carry from one subject to another.
Every new material builds on what you've already learned.
Process
Three steps, a few minutes
You add a video or a text
YouTube lectures, podcasts and playlists; pasted texts, .txt files and PDFs — up to about 2,000 pages at once.
The AI engine rebuilds it
It goes through the whole material and writes what the source claims, faithfully and clearly: the chapter-by-chapter synthesis, the key ideas and six types of cognitive foundations.
You read, listen, find again
The material stays in your library: you search everything you've saved, add notes, ask the library and, optionally, listen to it.
What you get
Two reading forms, six cognitive foundations
You read the synthesis and the key ideas in every material. The cognitive foundations from all your materials gather in the library, grouped by type.
Key ideas
The claims worth remembering, each tied to its explanation and context.
Reading
Principle
A causal regularity: “if X, then Y”. It explains WHY something happens.
Mental model
A way of looking at a problem that you can apply in other situations too. It shows you HOW to think.
Abstraction
A short term that compresses a complex idea into a memorable form.
Claim
An important statement or a central thesis of the material, with its explanation and nuances.
Mechanism
A causal chain: the steps through which a cause comes to produce an effect.
Action
What you concretely have to do: clear steps you can put into practice right away.
Benefits
Built for those who want to retain
Listen to materialsNarration in a natural voice; the text is highlighted as you listen. Optional, with credits.
Ask the libraryAnswers from your materials, with verifiable citations. (Extra cost: 1 credit per answer.)
Search everythingSearch instantly across everything you've saved: materials, ideas and every type of foundation.
Consolidated foundationsWhen the same cognitive element appears in several materials, you find it once, with all its sources.
Highlights and notesHighlight, underline and add notes on any passage. They stay private, in your account.
Edit the textFix mistakes, delete passages or rewrite sentences right in the material.
AI markerA toggle shows exactly what AI added to the source.
Interactive glossaryKey terms are explained on the spot, without losing the thread.
15 languagesRead in your language (one of the 15), whatever the language of the source.
Turbo for large volumesA whole playlist, several books or many files? Turbo processes them all at once, not one by one, so you don't wait for each. Optional.
Members' libraryPublish and browse other members' materials. If someone has already processed the same material, in the same language, you get it instantly, at no cost.
Audio is optional, is paid for separately with credits, and you see its cost before confirming.
In everyday life
How it finds its place in your routine
The people and situations are composites illustrating possible uses. They are not customer reviews or testimonials.
Up front
What we guarantee and what Sapyora does NOT do
14-day guarantee
Not for you? You get all your money back, no questions asked.
You always know the cost
You see the estimate before any processing. Failures are refunded automatically.
Credits don't expire
What you don't use stays in your account, from one year to the next.
Your data stays yours
GDPR, payments through Lemon Squeezy, export and deletion one click away.
It doesn't replace watching
It helps you decide what's worth watching in full and retain what matters.
It isn't the absolute truth
It's generated by AI and can be wrong. That's why you have the AI marker and a link to the source.
It doesn't keep everything
Condensing means selecting. For any detail, the source is one click away.
It doesn't live off ads
We don't sell your attention or your data. The only income is the subscription.
Questions
Questions, with answers
What do I get after processing?
What the source argues, reconstructed faithfully and clearly without weakening its case. Clear explanations, key ideas and reusable knowledge. Principles, Mental models, Abstractions, Claims, Mechanisms, Actions.
How many credits does a material use?
For text processing, the cost depends on length and language. As a rounded guide for video sources:
- 30 minutes: about 30 credits.
- One hour: about 45 credits.
- 90 minutes: about 60 credits.
You see the estimate before starting. The final charge follows the real cost, and any unused reservation is returned.
Audio is optional and is not included in these figures. It is not generated automatically and uses significantly more credits than text processing. You get a separate cost before confirming.
Can I try it before paying?
Yes. A free account comes with 100 gift credits, needs no card and does not expire.
Public examples are complete and open even without an account; whatever you process with the gift stays in your library.
Are my materials private?
Yes, by default. You decide whether to keep a material private, share it through a private link or publish it in the member library.
You can withdraw access or unpublish it later.
How accurate is it?
Processing starts from the full transcript or text. AI highlighting distinguishes additions from the source, citations link answers back to evidence, and you can return to the original or edit your material if an interpretation needs correction.
Can I listen to materials?
Audio is optional: it is not generated automatically. Generation uses significantly more credits than text processing and is charged separately.
Audio narration is synthesized separately from the material’s text, not taken from the source’s voice.
- Materials with audio tracks can also be listened to, including public examples that already have narration.
- You see the cost before confirming; replaying existing tracks uses no credits. You can generate new tracks for Romanian-language materials with an active membership and enough credits. Listening to available tracks on public examples does not require an account.
Open a material with audio and select “Listen”. Choose a track, adjust playback speed, jump between chapters, follow synchronized text and save audio bookmarks.
What kind of materials work best?
Long, idea-dense content: YouTube lectures, podcasts, talks and interviews, but also whole books, long articles, essays, magazines and PDFs. You can combine files up to roughly 2,000 text pages in one run.
Can I ask questions across my whole library?
Yes. Ask your library synthesises an answer from your processed materials and consolidated knowledge, and shows the exact sources used.
If the library lacks enough evidence, it says so instead of filling the gap. Each completed answer costs 1 credit, refunded automatically if a technical error occurs.
How does the knowledge base avoid hundreds of duplicates?
Principles, mental models, abstractions, claims, mechanisms and actions are merged across related materials while preserving sources, context and distinct formulations.
What's the shared member library?
Members can publish their materials and browse what others have published. If material from the same YouTube source transcript already exists in your language, it is added instantly at no credit cost.
Curated examples remain open to everyone.
What happens when I receive a material via a link?
Without an account you can read it in full in the Example Library, but you do not get a personal library. With an account, the link is kept in “Received”, but its knowledge does not enter your knowledge base automatically.
For a public YouTube source, members can generate material from the available transcript or receive their own copy instantly if it already exists. Text, PDFs, and paid or restricted YouTube sources can be read through a private link but cannot be reused automatically in the recipient’s knowledge base.
What happens to my data?
Your account details stay private and are never sent to the AI. Transcripts and submitted texts are processed through paid business APIs that do not use them to train models.
You can export or delete your account from settings.
Which languages are supported?
Fifteen: English, Romanian, French, German, Spanish, Italian, Portuguese, Dutch, Polish, Turkish, Hungarian, Swedish, Norwegian, Danish and Finnish. The source can be in a different language from the one you choose for reading.
Why is it so cheap?
Sapyora is built and maintained by one person together with AI agents — without investors, offices, a sales department or an advertising business. The €12 returns to you in full as processing credits, so the membership supports an independent learning tool while you pay for the machine's real, metered work.
Pricing
A simple, fair price
A single annual subscription — and all the money comes back to you as processing credits.
1 credit = €0.01.
Free account
€0no card, no time limit
100 gift creditsYour first material is on us. What you process stays yours — forever.
- Your own permanent library, with search and PDF export
- A consolidated knowledge base built from your materials
- Ask the library and get answers with citations
- Favourites, private notes and email reminders
Sapyora member
€12per year · 1,200 credits included
30 min video≈ 30 cr≈ €0.30
60 min video≈ 45 cr≈ €0.45
90 min video≈ 60 cr≈ €0.60
- Everything in the free account
- The members' shared library — browse and publish
- Materials already processed by others: instant, 0 credits
- Top-ups from €5 and audio generation, when you need them
Your first material ison us.
100 gift credits · no card · no time limit
Start free