Quickly and accurately translate documents with unparalleled precision and confidence for business, legal, and academic purposes.

About Transept AI
Transept is an AI translation workspace for books and long documents. A glossary keeps names and terms fixed, a style guide keeps your voice, and translation memory reuses every decision you approve. You read the original and the translation side by side, edit any sentence, and export a DOCX, EPUB or PDF that keeps its layout. Free plan included; paid plans start at €9/$10 a month. Pricing: Freemium. A free plan with 5,500 credits a month. Paid plans: Lite €9/$10, Starter €29/$33 and Pro €79/$90 a month. Credit packs from €19/$22 never expire. Standard mode costs 1 credit per source word, Pro mode 3.
Key features
- Block-by-block translation with intact structure for DOCX, PDF, Markdown, HTML, and raw text
- Shared glossaries and styleguides for consistent terminology and tone
- Translation memory stores approved translations for reuse based on semantic matching
- Decision-context memory retains reasoning behind translation choices for future use
- Built-in AI editor (Literess) for automated review, proofreading, and stylistic adjustments
- Collaborative review with threaded comments and shared workflows
- Exports to DOCX, Markdown, Notion, and Google Docs
- Originality reports track AI-generated content versus human edits
Use cases
- Translating books, blogs, or newsletters while preserving the author's voice
- Localizing marketing materials, brochures, or press releases for global audiences
- Managing large-scale localization projects with consistent terminology and style
Pros
- Preserves document formatting and structure during translation
- Uses translation memory and glossaries to maintain consistency across projects
- Includes an AI editor (Literess) for automated review and proofreading
- Supports batch processing for translating entire documents into multiple languages
- Offers role-specific workflows for writers, marketers, translators, and localization teams
Cons
- Free plan limited to first 5 pages of translation
- Requires manual setup of glossaries and styleguides for optimal performance
- No public pricing information available on the website
Transept AI videos
Frequently asked questions about Transept AI
What file formats does Transept AI support for translation?
Transept AI supports DOCX, EPUB, Markdown, PDF, and raw text formats for translation while preserving formatting and structure.
Who is Transept AI designed for?
The platform is designed for translators, content creators, writers, marketers, and localization teams who need consistent, high-quality translations with preserved context.
Does Transept AI use my data to train AI models?
No, Transept AI does not use your text to train AI models, and your data remains private by default.
Can I integrate Transept AI with other tools or APIs?
Yes, Transept AI offers a full API on paid plans, supports MCP for connecting AI assistants, and allows workflow automation via webhooks.
How does the translation memory feature work?
Translation memory stores approved translations and reuses them based on semantic matching, ensuring consistency across projects and languages.
What is the Literess AI editor, and how does it help?
Literess is an AI editor that reviews translations, catches terminology drift, and applies stylistic adjustments based on predefined goals or instructions.
Transept AI traffic & engagement
transept.ai · third-party estimates from Similarweb
Traffic trend
Last 3 months · grows by one month every month
- Jul 20261.8K
- Aug 2026709−60.4%
- Sep 2026216−69.5%
Top countries
Share of visits · estimated visits
Compared with similar tools
Writing & Content · Sep 2026
Traffic figures are third-party estimates, good for scale and trends; they can differ from a company's own numbers. Updated monthly.