Rozetta

What Rozetta does

Rozetta Corporation (株式会社ロゼッタ) is a Tokyo-based AI translation company and wholly-owned subsidiary of Metareal Group, providing high-precision industrial translation, real-time speech translation, and vertical generative-AI products to Japanese enterprises. Its flagship product T-4OO is a neural-network + LLM-based translation engine covering 2,000 specialized domains (legal, pharmaceutical, manufacturing, finance, IT, chemistry) and 100+ languages, with self-reported 95% accuracy and a 0.05% sentence-level correction rate in its ultra-precision mode. The portfolio also includes Onyaku (real-time voice translation integrated with Zoom, Microsoft Teams, and Google Meet), Premium T-4OO (an ISMS-certified dedicated-environment variant for regulated customers), RakuYaku AI (pharmaceutical document generation and contraindication checks, 100+ pharma customers), and the Metareal Group's ShigotoOwaru AI series of 50+ industry-specific agents plus Metareal AI as a ChatGPT-integrated enterprise platform.

Rozetta commercializes primarily through volume- or usage-based subscription pricing on T-4OO (with a permanent free trial), fixed monthly subscriptions on Onyaku (¥75,000 single department / ¥135,000 multiple departments on 12-month contracts), and premium subscription tiers for the secure T-4OO environment. Go-to-market combines direct enterprise field sales with phone/consultation intake, self-serve free-trial acquisition, an expanding partner/OEM channel, and active trade-show presence at industrial events such as Battery Japan and Manufacturing World Tokyo. Distribution is anchored by named enterprise customers including Olympus (1,000 users across 100 departments), Asahi Kasei, Shionogi, Hitachi Construction Machinery (1,500 employees), and Nakayama International Law Offices, supported by the parent group's installed base of 6,000+ enterprise customers.

Rozetta holds ISO/IEC 27001 and 27017 certifications for Premium T-4OO and PrivacyMark (No. 17001847), and ITR ranks it #1 in Japan's AI translation market by 2024 actual / 2025 forecast vendor sales share. The company was incorporated in March 2021 as a subsidiary under common leadership (Representative Director Junichi Goishi) with Metareal Group, which has been in operation since February 2004; Rozetta is the operating entity carrying the group's translation and vertical generative-AI business.

Name

Rozetta

Legal name

株式会社ロゼッタ

Website

https://rozetta.jp

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

51–100 employees

Short description

Rozetta is a Tokyo-based AI translation company and subsidiary of Metareal Group, providing high-precision industrial translation (T-4OO), real-time speech translation (Onyaku), and vertical generative-AI products to Japanese enterprises across pharmaceutical, manufacturing, legal, and financial sectors.

Ownership category

akta.pro rank

Product category

AI Translation Software

NAICS

Software Publishers (513210), Custom Computer Programming Services (541511), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371), Services-Management Consulting Services (8742)

akta.pro primary industry

AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ)

akta.pro secondary industries

End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA), Enterprise AI Data & Knowledge Platforms (Vector Databases, Knowledge Graphs) (HDAEANAH), Model Serving, Inference & Deployment Platforms (APIs, Edge/On-Prem) (HDAEANAC)

Keywords

• AI translation software
• Machine translation services
• Specialized language AI
• Enterprise translation SaaS
• Multilingual communication tools

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. T-4OO Subscription: Subscription-based model for the T-4OO AI translation platform. Pricing is usage-based based on translation volume, with plans tailored to customer needs through consultation. Volume-based pricing model allowing businesses to pay according to their translation requirements.
2. Onyaku Subscription: Subscription model for the Onyaku real-time voice translation service. Single department usage at 7.5万円/月, multiple departments at 13.5万円/月 for 12-month contracts. Supports both PC and smartphone access under single contract.
3. Premium T-4OO Dedicated Environment: Premium version offering dedicated isolated environment with ISMS certification. Higher-tier pricing for enterprise customers requiring enhanced security and compliance features.
4. API Integration Services: Revenue from API connectivity services enabling enterprise customers to integrate T-4OO translation into their own websites and external systems. Volume or subscription-based API usage fees.
5. Custom AI Development: Custom generative AI development services for industry-specific solutions. Includes specialized products like RakuYaku AI for pharmaceutical industry and other vertical AI agents under the 'Shigoto Owaru AI' series.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels5 records

Core offering

Rozetta develops and sells AI-powered translation software and vertical-specific generative AI solutions for enterprise customers. Its core offering is the T-4OO high-precision industrial AI translation engine, covering 2,000 specialized domains and 100+ languages with 95% accuracy, alongside real-time speech translation (Onyaku) and industry-tailored AI agents (RakuYaku AI for pharma, Shigoto Owaru AI series). Products are delivered as SaaS subscriptions with dedicated cloud environments, APIs for system integration, and custom generative AI development services.

Product overview

Rozetta is Japan's largest AI translation company, offering a portfolio of specialized AI products centered on its core translation engine T-4OO (高精度産業翻訳AI) and real-time speech translation tool オンヤク. T-4OO is the flagship neural-network-based translation engine covering 2,000 specialized domains and 100+ language pairs with 95% accuracy, available in standard, Premium (ISMS-certified dedicated environment), and API-accessible variants. オンヤク provides real-time voice-to-text and speech translation integrated with Zoom, Teams, and Google Meet. The portfolio extends into vertical-specific generative AI: ラクヤクAI for pharmaceutical document workflows, the シゴトオワルAI series (50+ industry-specific agents), and Metareal AI as a unified platform integrating global LLMs including ChatGPT. Additional specialized offerings include 四季報AI, キャラクターAI翻訳エンジン「ella」, and GLOVA.

Differentiator

Problem solved

Functional benefit

Brands

• T-4OO: High-precision industrial AI translation system supporting 2,000 specialized domains and 100+ languages. Uses LLM-based translation algorithms combined with specialized domain databases for professional document translation.
• オンヤク (On'yaku)
• Premium T-4OO
• ラクヤクAI
• Metareal AI
• シゴトオワルAIシリーズ
• Rozetta API

Products and services

• T-4OO High-precision industrial AI translation engine covering 2,000 specialized domains and 100+ language pairs with 95% translation accuracy. Supports file translation (PDF, Word, Excel, PowerPoint) with layout preservation, OCR for scan-image PDFs, company-specific terminology databases, and API connectivity for external system integration. The product features an ultra-precision mode with a 0.05% sentence-level correction rate, parallel text generation, reference document translation, web page translation, automatic expression/notation variation resolution, and human translation request integration.
• Onyaku (オンヤク) Real-time voice-to-text transcription and simultaneous speech translation tool for web conferences, offline meetings, and video content. Supports 100+ languages; integrates with Zoom, Microsoft Teams, and Google Meet. Functions as both a meeting translation tool and meeting minutes generator, with field selection capability and subtitle-style overlay display.
• Premium T-4OO Dedicated-environment variant of T-4OO for enterprises and organizations requiring the highest security levels. Operated under ISMS certification (ISO/IEC 27001 + 27017); provides internet-accessible dedicated environment with single sign-on and ID federation options, SSL encrypted communication, secure domestic data centers, and automatic deletion of translation data after 2 weeks.
• RakuYaku AI (ラクヤクAI) Generative AI solution tailored for the pharmaceutical industry. Automates document and material drafting, performs contraindication checks for off-label usage expressions, and enables knowledge search across internal documents, published research papers, and external data sources. Built on customer-dedicated AI environment with no risk of knowledge or data leakage. Over 100 pharmaceutical companies have adopted this service.
• Shigoto Owaru AI Series (シゴトオワルAIシリーズ) Suite of over 50 industry-specific AI agent products developed by Metareal Group (parent company), spanning use cases such as initial due diligence tools for investment banks and VCs (completing initial review in approximately 2 minutes), news report creation for broadcasting organizations, and architectural industry support tools.
• Metareal AI Enterprise AI acceleration platform integrating the world's latest AI technologies including ChatGPT. Provides unified access to generative AI products, enabling internal knowledge utilization and meeting minutes automation. Offers 5,000-customer-validated high-security environment with customizable AI solutions and AI contract development and individual consulting support.
• Rozetta API API service enabling integration of T-4OO translation capabilities into external websites and systems. Provides programmatic access to the T-4OO translation engine for embedding in third-party applications and automated workflows.
• GLOVA Translation service in the Rozetta product portfolio, available via the company's product catalog.
• Character AI Translation Engine 'ella' (キャラクターAI翻訳エンジン「ella」)

Named customers5 records

Segments7 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability8 records

Feature10 records

Partnerships

One partnership is on record.

• Metareal Group (株式会社メタリアル・グループ)coreOthersParent company relationship. Metareal Group is the parent company of Rozetta Corp. The group holds the No.1 market position in Japan's translation market with 6,000+ enterprise customers. Rozetta operates as a subsidiary developing and providing AI translation services as part of the group's comprehensive language AI portfolio including products like GLOVA, Shigoto Owaru AI series, RakuYaku AI, Metareal AI, and character AI translation engine 'ella'.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Lionbridge: Large-scale language services provider combining human translation with AI/MT workflows. Comparable to Rozetta in serving global enterprises with technical, regulated content, especially in manufacturing and life sciences.
• Unbabel: AI-powered translation platform combining MT with human post-editing, focused on enterprise customer support and content localization. Overlaps Rozetta in subscription-based AI translation with API integration.
• Smartling: Enterprise translation management and AI translation platform with API-first architecture. Directly comparable to T-4OO in providing programmable, integrated translation for global digital content workflows.
• DeepL: Germany-based AI translation platform widely regarded as the leading independent competitor to Rozetta in enterprise-grade neural translation. Both target business users with high-quality, domain-aware translation, and both compete for Japanese enterprise contracts.
• RWS (formerly SDL): Global language services and technology company offering Trados translation platform and enterprise localization services. Competes with Rozetta in regulated, technical, and high-volume translation workflows across pharma and legal verticals.
• Phrase (formerly Memsource): Cloud-based translation management platform serving enterprises and language service providers. Competes with Rozetta's API and OEM translation integration use cases for localization operations.

Regional players

• Honyaku Center: Japanese translation services company providing human and MT translation across technical and business domains. A Japan-market comparable to Rozetta's enterprise translation business, though more services-oriented.

Broad incumbents

• Microsoft Translator: Translation service integrated across Microsoft 365, Teams, and Azure. Competes with Rozetta's Onyaku real-time voice translation for enterprise communication and benefits from incumbency in Japanese IT environments.
• Google Translate: Free, broadly available translation service backed by Google's LLMs and global infrastructure. Represents the commodity baseline against which Rozetta's paid specialized translation competes, particularly for non-regulated use cases.

Emerging players

• Translated (Translated.net / Lara): Italian language services company operating its own AI translation engine (Lara) alongside professional services. Comparable hybrid AI + services model targeting enterprise customers in regulated industries.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds3 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments5 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rozetta