T-4OO
by T-4OO
What T-4OO is
T-4OO is an AI translation service for business and research documents, combining LLM-based translation with specialist capabilities. It covers 100 languages and 2,000 specialist fields, including legal, medical, finance, chemistry, IT, machinery, and electronics. Word, Excel, PowerPoint, PDF, and scanned PDF files can be translated, with layout retention dependent on the source document. Entering a website URL translates the site while retaining its layout, and links can open automatically translated pages. The browser editor places source and translation side by side and includes dictionaries and bulk replacement of terms. Past sentences can feed a company-specific database so organizational terminology is reused. High-precision mode flags possible mistranslations and provides reasons and alternatives for review. Security measures include encrypted communications, Japanese ISMS-certified hosting, two-week automatic deletion, user deletion, IP restrictions, password locks, permissions, optional two-step verification, and SSO. Rozetta’s API connects the translation engine to other systems. The individual plan costs 14,980 JPY per month, includes 10,000 words (about 25 pages), and is for one person. Corporate pricing is usage-based and available on request; a free trial is offered.
Who it suits
T-4OO suits businesses and research teams translating specialist documents or websites across many languages. Its individual plan is limited to one person, while multiple users are directed to the corporate plan.
What it does well
- 100 languages and 2,000 specialist fields
- Translates scanned PDFs
- Website translation retains layout
- Company terminology database reuse
- API available for integrations
What to know first
- No free plan
- Individual plan limited to one person
- Individual plan has a 10,000-word monthly allowance
- Corporate pricing requires an inquiry
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| 超高精度プラン（スタンダード） | 税込、月単位の自動更新 · 原文10,000ワード／月（約25ページ） · 上限到達後は翌月の更新日まで利用不可 | ¥14,980 a month |
| T-4OO 法人プラン | 翻訳する分量に応じたプランと料金体系。問い合わせに応じて見積もり · 利用量に応じたプラン | On request |
As rozetta.jp lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
T-4OO combines broad specialist coverage with document, website, terminology, and review tools. Its security controls and API support organizational deployment, while plan limits and usage-based corporate pricing require consideration.
Facts from T-4OO's own pages
- Access controls
- The feature page lists IP address restrictions, password lock, group settings and permissions, and optional two-step verification and SSO. · rozetta.jp, 12 Oct 2026
- API access
- Yes · rozetta.jp, 22 Sept 2026
- Document translation
- Yes · rozetta.jp, 22 Sept 2026
- Editing tools
- The browser editor offers side-by-side source and translation editing, dictionaries, and bulk replacement of translated terms. · rozetta.jp, 12 Oct 2026
- File translation
- It translates Word, Excel, PowerPoint, and PDF files, including scanned PDFs, while retaining layout subject to the condition of the original document. · rozetta.jp, 12 Oct 2026
- Founded
- 2004 · rozetta.jp, 28 Sept 2026
- Free plan
- No · rozetta.jp, 22 Sept 2026
- Glossary tools
- Yes · rozetta.jp, 22 Sept 2026
- Headquarters
- Tokyo, Japan · rozetta.jp, 28 Sept 2026
- Individual plan limit
- The individual plan is for one person; the FAQ directs customers needing multiple users to the corporate plan. · rozetta.jp, 12 Oct 2026
- Integrations
- T-4OO’s translation engine is available through Rozetta’s API for integrating translation into other platforms and systems. · rozetta.jp, 12 Oct 2026
- Security
- The maker says T-4OO uses encrypted communications and servers in Japan at an ISMS-certified data center; translation data stored on servers is automatically deleted after two weeks and can also be deleted by the user. · rozetta.jp, 12 Oct 2026
- Specialist coverage
- The service supports 2,000 specialist fields and 100 languages. · rozetta.jp, 12 Oct 2026
- Support
- The maker lists phone and email support, online manuals and videos, online briefings, operational consultations, and a user community. · rozetta.jp, 12 Oct 2026
- Terminology
- Past translated sentences can be added to a company-specific database so the service can analyze and reuse company words and phrases in later translations. · rozetta.jp, 12 Oct 2026
- Translation memory
- Yes · rozetta.jp, 22 Sept 2026
- Translation review
- The high-precision mode flags potential mistranslations and presents reasons and alternative translations for review. · rozetta.jp, 12 Oct 2026
- Website translation
- Yes · rozetta.jp, 22 Sept 2026
- Web translation
- Users can enter a website URL to translate the site while retaining its layout, and links in the translated page can open automatically translated pages. · rozetta.jp, 12 Oct 2026
- What it does
- T-4OO is an AI translation service for business and research documents, using LLM-based translation alongside specialist translation capabilities. · rozetta.jp, 12 Oct 2026
- Who it is for
- The maker describes the service for specialist business and research documents and names sectors including legal, medical, finance, chemistry, IT, machinery, and electronics. · rozetta.jp, 12 Oct 2026
Where T-4OO stands on Freedom251
- Translation apps#120 of 158
- Translation Software#119 of 156