AI自動翻訳の株式会社ロゼッタ
Rozetta Corp. (Metareal Group) · Writing · Business
Rozetta is a Tokyo AI translation company behind MetaRozetta, an enterprise platform for technical, legal, and pharma documents, with layout-preserving file translation.
About AI自動翻訳の株式会社ロゼッタ
What Is Rozetta
Rozetta Corp. is a Tokyo company founded in 2004 and now the core operating business of Metareal Group, which trades on the TSE Growth market under code 6182. The company sells specialized machine translation for professional documents, not casual chat or travel translation.
Its main product is MetaRozetta, the rebranded successor to T-4OO. According to Rozetta, the platform reaches a clear mistranslation rate of 0.003 percent, has been deployed at more than 6,000 companies across 2,000 fields, and holds the top domestic share of Japan's translation market for five straight years. Those numbers come from the vendor and from ITR market research, so treat them as company claims rather than independent lab results.
The limits matter just as much. Pricing is quote based, with no public rate card. Full autonomy is designed for Japanese to English document pairs, and other languages use the high precision or ultra-high precision modes. There is no self-serve consumer signup, which puts the product out of reach for casual users.
Getting Started
- Request a free trial from the Rozetta website and name your language pairs and document types.
- Send sample files from real work, such as manuals, regulatory submissions, or patent filings.
- Test the output in each mode and check terminology, layout, and table handling on your own documents.
- Agree on volume, seats, and glossary setup with the sales team, then roll the platform out to the translation workflow.
Product Information
A quick look at AI自動翻訳の株式会社ロゼッタ's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Manufacturing documentation teams
- Pharmaceutical and regulatory writers
- Legal and IP departments
Tasks
- Translating maintenance manuals while keeping page layout
- Localizing regulatory documents for overseas filings
- Converting Japanese technical specs into English
- Building a bilingual knowledge base
Scenarios
- A manufacturer ships the same machine to twelve markets
- A pharma team faces a tight filing deadline
- A company without in-house translators needs overflow capacity
Key features
Fully autonomous translation at Lv4
Rozetta borrows the self-driving scale and applies it to translation. Its top mode aims to finish a document without human checking, correction, or approval inside defined conditions. The company limits this Japanese to English translation workflow to technical and business documents, including manuals, specifications, procedures, and statutory disclosures.
Three precision modes
The platform separates speed from accuracy instead of forcing one setting. High precision mode covers 106 languages for fast turnaround. Ultra-high precision mode covers 15 languages and spends more compute on difficult passages. The maximum precision mode adds the autonomous workflow for Japanese and English.
Layout-preserving file translation
You upload Word, Excel, PowerPoint, or PDF files and get translated versions that keep the original structure as far as possible. Scanned documents go through OCR first. Tables, headers, and page order usually survive, but Rozetta notes that results vary by file, so a test on your own documents is the only reliable check.
Mistranslation risk highlighting
In ultra-high precision mode, the system marks passages where a single correct reading is not obvious. Reviewers then check those spots instead of reading every line. For regulated work this turns a full review into a targeted one, and it leaves the final judgment with a person.
Deep domain coverage
Rozetta built dictionaries and reference material across 2,000 fields, grouped into medical and chemical, IT and engineering, business, and humanities tracks. Glossaries and translation memory let a team lock approved terms and reuse earlier segments, which matters most in long projects with several translators.
Security controls for confidential files
All traffic runs over TLS, and uploaded translation data is deleted automatically after two weeks by default. Rozetta offers NDAs and can run the service in a domestic data center that follows ISO 27001. The company holds ISMS certification, which helps clear procurement reviews at large organizations.
Pros and cons
Pros
- Domain dictionaries cover technical, medical, legal, and patent language that general tools handle poorly.
- Layout retention on Office files and PDFs saves hours of manual rebuilding after translation.
- The autonomous mode targets the review step itself, which is where most translation budgets go.
- A track record of 6,000 corporate deployments gives procurement teams something concrete to check.
- Security options include NDA support, automatic data deletion, and ISMS certification.
Cons
- Pricing only comes through a sales quote, so you can't estimate cost from the website alone.
- Full autonomy is limited to Japanese and English, which rules it out for other language pairs.
- There is no self-serve plan, so freelancers and small teams face a slow buying process.
- The 0.003 percent mistranslation figure is vendor reported, and buyers should verify it on their own files during the trial.
Frequently asked questions
Rozetta sells MetaRozetta, a subscription AI translation platform for business documents, plus related products for voice translation and pharma document review. The core offer is document translation with domain dictionaries and file layout retention.
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