SUX1
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BUILT FOR STUDENTS, RESEARCHERS & TEACHERS

A 200-page PDF.
Summarised in 5 seconds.

SUX1 is the tool for people who read a lot: courses, theses, scientific papers, whole chapters, entire Gutenberg books. Where ChatGPT asks you to split the text, open a chat, re-prompt — SUX1 swallows a full book in one click. From €2 for 20 summaries. No subscription.

Article · 200 pages
Summary · 5 lines
SUX1 · Distilled in 3 seconds
Try it freeDownload the PDF presentation
117 utilisateurs
569 résumés générés
01 · THE PROBLEM

You read more than ever. You understand less.

Our digital lives drown us in text: articles, reports, contracts, emails, meeting transcripts, 12-paragraph LinkedIn posts. Reading time hasn't kept up.

General-purpose AIs (ChatGPT, Claude, Gemini) are amazing — but overkill for one simple task: 'summarize this'. SUX1 removes that friction.

02 · THE SOLUTION

One screen. One button.

SUX1 is built for one use case: summarizing. Paste text (or upload a PDF, DOCX, or paste an article URL), pick your options, click Summarize. That's it.

02b · SUX1 vs FREE CHATGPT

"But ChatGPT does it for free?"

Yes, ChatGPT can summarise a short text. No, it cannot do what SUX1 does. Honest comparison:

FeatureFree ChatGPTSUX1 · from €2
Max input length≈ 8 000 words (32k tokens) — silently truncates beyond
Whole book · up to 300 000 chars via auto map-reduce
200-page thesis PDFNo — you must copy-paste chapter by chapter
Drop the file · full streaming summary
EPUB / Project GutenbergNot supported
Native import · global or chapter mode
Web article (URL)No — you paste the text manually
Paste the URL · Trafilatura extracts clean content
Book cover photoNo
Snap the cover · full reading sheet
Chapter-by-chapter summaryNo — single output blob
Accordion · up to 40 detected chapters
Searchable persistent historyLast 3 chats in a mess
Dedicated history · search, sort, tags
Public sharing (Open Graph link)No
Every summary becomes a shareable public page
Offline voice readingNo
Listen button · native FR/EN voices, free
3 AIs to choose per summaryYou're locked on one model
Claude Sonnet 4.5 · GPT-5.2 · Gemini 3 Flash in one click
"Explain & Solve" formatRe-write the prompt every time
Dedicated button · perfect for exercises & exams
Price€0 · but hidden caps + ads for Plus ($20/month)
From €2 for 20 summaries · credits never expire · no subscription
PrivacyYour texts may train OpenAI models
Your texts are never used to train any AI

In short: ChatGPT is a swiss-army knife. SUX1 is a swiss razor. If summarising is your daily job — student cramming for an exam, researcher digesting 30 papers a week, teacher prepping a class — one wastes your time, the other saves it.

Try it freeStudent or researcher? See the dedicated page →
03 · UNDER THE HOOD

The best of AI, without the complexity.

3 AI models, your choice
Claude Sonnet 4.5, GPT-5.2, Gemini 3 Flash — switch in one click. Each model has its character: literary, analytical, fastest.
5 input sources
Pasted text, PDF, DOCX, TXT/MD, article URL (auto-extracted with Trafilatura, ignores ads and nav), public Google Docs, and book-cover photo scan.
3 lengths · 12 formats · 7 languages
Short, medium, long. Paragraph, bullets, or Philo+citations. Auto-detect or force a language (FR, EN, ES, DE, IT, PT).
Public share + Open Graph
Every summary can become a public link with a dynamic Open Graph preview — shareable on LinkedIn, X, WhatsApp.
Privacy first
Your texts are never used to train third-party AIs. Delete summaries or your account anytime.
04 · EVERY FEATURE

A swiss-army knife for any text.

SUX1 started as a plain "paste your text" field. Today it handles an entire book in streaming, a cover-photo scan, a Wikipedia URL, a PDF contract or a YouTube transcript — with the same one-click simplicity.

3 summary modes

  • Global summary
    A synthetic summary of the whole document, in your chosen length and format.
  • Chapter by chapter
    Auto-detects up to 40 chapters and summarises each — perfect for a book or a long report.
  • Scan a book
    Snap a book's cover: SUX1 identifies title + author via Claude Vision, then produces a full reading sheet, without storing the image.

5 input sources

  • Pasted text
    Up to ~300 000 characters in either mode.
  • PDF / DOCX / TXT / MD file
    Clean extraction, with automatic repair of broken ligatures ("fl", "ff"…).
  • Article or blog URL
    Trafilatura extraction: no ads, no menus, just content. Supports public Google Docs redirects.
  • Book cover photo
    Opens the mobile camera directly via `capture="environment"`.
  • Project Gutenberg & long books
    Auto-chunked into 16 sections through a streaming map-reduce pipeline.

Fine-grained options

  • 3 lengths
    Short (2-4 sentences), Medium (paragraph), Long (up to 1 500 words).
  • 12 formats
    Flowing paragraph, Key points, Paragraph+Points, Teacher (lesson prep + pitfalls), Revision sheet, DYS revision sheet, Encyclopedic sheet, Philo+citations, Essay, Explain & Solve (walks through any exercise step by step).
  • Metaphors (image-based summary)
    “In a nutshell”, then each key idea explained with an everyday image (“It's like…”) and its “Limit” so it never misleads. Adapted to the class level. A single notion is enough (e.g. “photosynthesis”).
  • Poem & recitation
    The lesson becomes a 3-6 stanza rhyming poem, followed by “Key takeaways” and “How to recite it” tips. Free, slow read-aloud, stanza by stanza (Repeat, Next) to learn it by heart.
  • 7 languages
    Auto-detect, or force FR, EN, ES, DE, IT, PT.
  • 3 AI models
    Claude Sonnet 4.5 (literary), GPT-5.2 (analytical), Gemini 3 Flash (fastest).

User experience

  • Live streaming
    The summary types itself before your eyes.
  • Visible progress
    In chapter mode: "12 / 40 chapters done…" with a progress bar.
  • Partial rescue
    If the connection drops during a long summary, what was generated is shown anyway.
  • Native voice reading
    "Listen" button that reads the summary aloud via the browser's speech synthesis — free, offline, native FR/EN voices on iOS and Android.
  • Clear error banners
    No more silent failures — every error is explained and suggests an action.
  • Dark mode
    Polished dark theme for evening reading.
  • Sticky mobile CTA
    The Summarize button is always reachable at the bottom of the screen.
  • Auto spell repair
    PDF with broken ligatures? The system prompt fixes them before summarizing.

Sharing and export

  • Public link + Open Graph
    Each summary becomes a public page with a beautiful share card.
  • Web Share API
    Opens the native OS share sheet (iOS, Android).
  • Print to PDF
    Print button with an optimised layout.
  • Persistent history
    Find every summary in the History tab — search, sort, delete.
  • Password change
    From Settings, no reset email needed.

PWA & mobile

  • One-click install
    SUX1 is a Progressive Web App — add it to your home screen (iOS/Android) for a native launch.
  • Google Play Store
    Android build in closed testing (soon in production).
  • Dedicated splash
    Native CSS splash screen, no white flash.
  • Tap feedback
    Micro-animation on every tap, like a real native app.
05 · PRICING

From €2. No subscription.

FREE
€0
  • 3 trial summaries
  • With Gemini 3 Flash
  • Texts up to ~20 pages
  • No card required
Start free →
CREDIT PACKS
from €2
  • 20 credits €2 · 60 credits €5 · 130 credits €10
  • All AI models included
  • All sources
  • Public share + Open Graph
  • Credits never expire · no subscription
See packs · from €2 →
06 · WHY SUX1

Five principles.

Minimalist
One screen. One button.
Honest
Pay for what you use. No subscription tricks.
Accurate
Faithful summaries. Nothing invented.
Private
Your texts stay on the server.
Beautiful
Swiss design & typography.
07 · CHANGELOG

What's changed recently.

SUX1 keeps evolving. Here are the major improvements shipped in the last few weeks.

  1. v1.6Aug 9, 2026

    Native voice reading (Web Speech API)

    "Listen" button next to every summary — global, chapter, or archive detail. Uses the browser's native speech synthesis: free, offline, high-quality French and English voices on iOS, macOS, Chrome and Android. Play / Pause / Stop, auto language detection, auto-cancel on navigation.

  2. v1.5August 2026

    Whole-book global summary (streaming map-reduce)

    Two-phase pipeline: 16 sections digested in parallel by Gemini Flash, then a final synthesis by your model of choice. Text types itself token by token in the UI. If the connection is cut, the partial summary is preserved.

  3. v1.4August 2026

    Chapter mode with streaming (batches of 5)

    Auto-detects up to 40 chapters. Each chapter streams progressively into an accordion. Live progress bar. Per-chapter timeout prevents any hang.

  4. v1.3July 2026

    "Scan a Book" — reading sheet from a photo

    Snap a book's cover: Claude Vision identifies title and author, then SUX1 produces a full reading sheet — without storing the image.

  5. v1.2July 2026

    Better URL extraction

    BeautifulSoup replaced with Trafilatura: no more ads, no more menus, just content. Native support for public Google Docs redirects.

  6. v1.1June 2026

    PWA + Google Play (closed testing)

    One-click installable on iOS and Android. Native CSS splash screen. Tap feedback on every interaction. API 36-compliant AAB uploaded to Google Play Console.

  7. v1.0June 2026

    Sharing, printing, dark mode, Philo+citations

    Web Share API for native sharing, optimised PDF printing, polished dark theme, and a new "Philo" format: central idea + philosophical perspective + author quotes.

08 · HELP US GROW

Share SUX1.

If you find the tool useful, the best gift is telling others.

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