— Books, blogs, newsletters and papers —
Publish anywhere, in your voice
Human-quality translation of your book, blog or paper, for a fraction of a translator's fee.
No cardFirst 5 pages freeYour work never trains AI
Your writing stays yours
You own the translation
Transept claims no rights to your text or its translation, and our terms say so.
Terms of servicePrivate by default
Your text is never used to train AI, not by us and not by any provider we use, and it stays out of our logs. Delete your account and your text is deleted with it.
How we handle dataHosted in Germany
Your text and its translation are stored on our server in Germany, in Hetzner’s ISO 27001-certified data center. Every company that handles your text is listed.
All sub-processorsA native reader, no account
Send a comment link to someone who reads the language. They see the original beside your translation and comment on the exact sentence, with no account.
Review linksWhat do you write?
- Use caseTranslate your book with AI without losing the voice→A character glossary that holds for 300 pages, a styleguide built from your own chapter, and alternatives for every line of dialogue. For…
- Use caseTranslate the next post without losing your voice→Long-form writing lives or dies on voice. Translate your post with a styleguide built from your own writing, pick between alternatives for…
- Use caseTranslate your paper or thesis with your terminology intact→For journal articles, master’s and PhD theses, conference papers, grant proposals, and monographs. A glossary holds your field’s terms from…
From draft to any language, in one workflow
I.Drop in your draft, see it translated
Upload a DOCX, EPUB, Markdown or plain-text file, import a page from Notion, or paste a chapter. Headings, lists and formatting carry over, the translation sits beside your text, and an EPUB goes back out as the same e-book.
II.A glossary for the names that matter
Character names, places, invented words, the terms of your field. Pin them once, or let Transept suggest them from your text, and every chapter, post and language uses the same form, from page 1 to page 500.
III.A styleguide that holds your tone, sentence by sentence
Build it from a few pages you already like: sentence rhythm, register, how your dialogue sounds. Every translation and every rewrite follows it, so when you ask for "more punch" or "keep the metaphor", the result still sounds like you.
IV.Literess flags what flattens your tone
A literary editor at your side: she reads the translation, finds where the tone has gone flat, and leaves notes on the blocks that need another pass before you publish.
V.Review with your editor or a native reader
Send a link. Your editor or reader opens the translation in a clean reading view and comments on any sentence, without creating an account. You reply and resolve threads in the same place, with no files emailed back and forth.
Three ways to translate a novel
| Route | What you pay | How long | What you get |
|---|---|---|---|
| A literary translator | €6,000–€12,000 | 4–5 months, full time | One skilled person's rendering of your book |
| AI on its own | Free to a few hundred euros | Hours | A draft: names drift, lines go missing, and the prose turns literal |
| Transept, with you reviewing | About €79 (the Pro plan for a month), or about €158 with Pro mode for the prose | Hours for the draft, then your read-through | A draft that keeps your names and voice, proofread against the source, with every line approved by you |
Your first 5 pages are free. A 90,000-word novel costs about €79: one month of Pro, cancel anytime. See the plans
Transept’s price covers translation, a proofread against the source and a check of every name: about 117,000–171,000 credits for this book in Standard mode, 297,000–351,000 in Pro mode. The app shows the exact price before every run.
Translator rates and timelines: What it costs to translate a novel. Try your own word count in the cost calculator.
Proof of the work you put in
Editors, agents and readers want to know how a book was made. The originality report shows it: how much of the translation you wrote or rewrote, by word, and which passages you read and approved. It is a record of how the text was made, not an AI detector, and it sits well beside an honest AI declaration on KDP.
- Counted by word. The words the AI wrote, the words you changed and the paragraphs you wrote yourself, each counted on its own.
- Every step on record. Translations, rewrites, fixes, your edits and your approvals in one list, each line marked as yours or the AI's.
- Your sign-off, dated. Before the PDF downloads, Literess asks whether you read the translation through. Say yes and the report records it.
Two reports on the Free plan, unlimited on every paid plan.
Originality report
Chapter 3 · Ukrainian → English
Reviewed in full by the author, confirmed on Oct 21, 2026
Simple pricing
Every plan comes with monthly credits. You spend them only on AI work, at the price each action shows before you click. No sales call and no contract: start free and add a credit pack whenever you need more.
One credit covers one source word in Standard mode. Pro mode uses a more capable model and costs 3 credits per source word. Chinese and Japanese source text is counted per character. Manual edits, exports, comments and translation memory are free: you spend credits only when AI translates, rewrites or checks your text, or reads a document to build a glossary or styleguide. Every paid action shows its price on the button before you click. See the price list.
Free
Always freeTo try your first pages
Unlimited users
Translated and proofread on Standard. About five with Pro.
- Pro mode: a more capable model for nuance, 3 credits per source word
- Standard quality: fast, accurate, faithful
- Translation memory: your past translations, reused to keep new ones consistent
- Glossary, styleguide, QA, import / export: all included
- Notion, Drive, TMX / XLIFF: import, export, and bring your own memory
- 68 languages: from Spanish to Tagalog
- Paragraph-by-paragraph translation in every mode
- Literess, your AI literary editor: 10 messages free, then credits
- Originality reports: 2 included
- No card required
Lite
A chapter a month, every tool included
Unlimited users
- Whole pages and documents in one run
- Unlimited originality reports
- Workflows: chain translation, proofreading, and checks into one run
- API, MCP & webhooks: automate runs, or let AI assistants work in your account
- Teams: create as many as you need and invite anyone for free
- Top up anytime: pack credits never expire
Starter
Most popularFor a book in progress
Unlimited users
- 3× Lite’s credits: for weekly work
- Teams: invite anyone for free; add €29 seats to fund a shared credit pool (80,000 credits a month each)
Pro
For higher volumeFor a series or several languages
Unlimited users
- 3× Starter’s credits: headroom for batch work and full catalogs
- Priority support: a direct line and faster replies
- Predictable bill: most months need no extra credit packs
Prices are in euros and exclude VAT. If VAT applies to your purchase, checkout shows it before you pay, and a business with a valid EU VAT ID pays the net price under reverse charge. You can buy credit packs on any plan, including Free: 30,000 credits for €19, 100,000 for €55 or 300,000 for €149. Pack credits never expire. Creating a team and inviting people is free. To share credits, add two or more seats: each seat adds its plan’s monthly credits to the team’s pool, all on one invoice. Cancel anytime and keep your plan until the end of the period you’ve paid for. We give refunds for faults on our side that we can’t fix and for billing mistakes, and EU consumers can withdraw within 14 days and get back the unused part.
Nothing could translate what we wrote — so we built what could
Two writers, one problem.
— Vitalii.I wrote 120,000 words of satirical romance fantasy: mages drowning in debt, a multiverse economy that makes Wall Street look ethical, and a love story tangled up in all of it.
— Mariia.I write semi-fictional stories about real people, built around how it felt. Most of the people I wrote about were foreigners. We met in English, spoke in English, lived those moments in English. So I wrote them that way too.
Vitalii VlasiukCo-founder
Mariia IvakhnenkoCo-founder
“But I sometimes wonder what version of them I missed by not writing them in their language.”Mariia
— Vitalii.The same flatness hit me from the other side. Every tool I tried preserved the words but killed the voice. Tone, rhythm, wit, emotional texture: nothing held. It all came back flatter than it went in.
— Both of us.So we did what we know how to do. We read the machine-translation papers. We benchmarked Claude, GPT, Gemini, and a handful of open models on the same 50-page chapter and judged them on accuracy, tone, and whether the satire still landed. None of them held all three; each failed in a different way. So we built the tool we wished had existed when we started.
We still use it every day. This site is localized in Transept: every change to its German and Chinese pages goes through the same workflow you'd use.
Built by two writers for their own writing
Mariia Ivakhnenko · Co-founder
CRM and lifecycle marketing manager at Invity, running onboarding, retention and win-back for over 30,000 fintech users; before that, lifecycle marketing at Snov.io and product at Litero AI. Two degrees in English language and literature. Builds product features and runs marketing, CRM and communications at Transept. LinkedIn →
Vitalii Vlasiuk · Co-founder
Senior machine learning engineer at SumUp, building AI assistants and the tests that keep them accurate; before that, LLM evaluation for Deloitte and AI engineering at Litero AI. A degree in language and literature. Builds the AI behind Transept. LinkedIn →
FAQ
- Write a translation styleguide once, covering your tone, your rules and the quirks you want kept. Every translation in every language follows it, and when you regenerate a sentence, both the styleguide and your direction apply.
- No. Translate first and add character names or field terms as you notice them, or let Transept suggest a glossary from your text and keep the entries you approve. For a one-off post you can skip it.
- Yes, from a 500-word post to a 300-page manuscript or a thesis. Long pieces keep their chapter and section structure, and you can still work on a single sentence where it has to land.
- Yes. Upload the EPUB and every chapter is imported in reading order, along with the book's title and table of contents. Export as EPUB returns the same book with your translation inside: the cover, images, fonts, styles and footnote links stay as they were, and the book declares its new language. Use a DRM-free copy, such as the file your formatting software exported.
- Yes, if you publish on KDP. Amazon's content guidelines count a translation made with an AI tool as AI-generated, even after substantial edits, and ask you to declare it when you publish or republish. KDP accepts AI-generated books; it asks you to say so. Other retailers and publishers set their own rules, so check each one before you upload.
- It might, and that's a reason to declare it rather than hide it. We don't build Transept to get past AI detectors: they guess, they also flag text people wrote, and no tool can promise how they'll score a book. What we build for is what readers notice: names that hold, dialogue that sounds like your characters, and lines you've read and approved.
- Yes, with the originality report. It shows, by word, how much of the translation you wrote or rewrote and how much the AI wrote, which passages you read and approved, and the date you confirmed you reviewed the whole book. It doesn't hide that AI was used, so declare it where your publisher or KDP asks; the report shows the work you did on top. Two reports are free, every paid plan has no limit.
- You do. Transept claims no ownership of your text or its translation, and your work is never used to train AI. How far copyright protects an AI-assisted translation is a separate question: in the US, the parts a person wrote are protected and material generated purely by AI is not, so your edits count. This is general information, not legal advice.
- Connect your Notion workspace, search for the page or database you want, and import it as a translation document. When you’re done, export the translation back to Notion with the same structure, ready to schedule and publish.
- Use Pro mode when tone and nuance matter more than speed. It uses a more capable model and costs 3 credits per source word. Standard is fine for most blog posts and newsletters; for fiction, essays or anything with a tricky tone, Pro mode is worth it.
- Free gives you 5,500 credits a month with Pro mode included, about 11 pages translated and proofread on Standard (5 with Pro), translated paragraph by paragraph: enough to try the editor on your own text. Lite, at €9/mo for 25,000 credits, is a chapter a month with every tool included, and it translates whole pages and documents in one run: about 80 pages in Standard or 28 in Pro mode. Starter, at €29/mo for 80,000 credits, suits regular publishing: about 265 pages in Standard or 90 in Pro mode. Pro, at €79/mo for 240,000 credits, is for higher volume. Any plan, Free included, can add credit packs: Small (€19 for 30K), Medium (€55 for 100K) or Large (€149 for 300K). Pack credits don’t expire.
3 languages, 2 AI detectors
We ran AI translations of our own novel, between Ukrainian, English and Chinese, through two popular AI detectors. A detector asks who wrote a text, and a translation keeps its author; Amazon asks how the translation was made. So whatever a detector says, declare an AI translation.
What the detectors saidFeatured on
