T-400 Translation Update
2026-08-25 07:02:21

Rosetta Expands High-Precision AI Translation T-400 to 106 Languages

In a significant upgrade, Rosetta, a subsidiary of Metarial Group and the leader in AI translation services in Japan, has announced that the high-precision industrial translation AI, T-400, now supports a total of 106 languages in its high-precision mode. This new feature effectively captures context and nuances, aiming to enhance translation accuracy and naturalness. Previously offering translation in 72 languages, the T-400 has expanded to include an additional 34 languages, thereby making all previously traditional translation languages available in this advanced mode.

What is the High-Precision Mode?


The new high-precision mode integrates traditional T-400 translation technology with the latest generative AI techniques. By accurately capturing context and nuances, the mode delivers translations that are not only more precise but also sound natural compared to traditional translation methods. This enhancement is crucial for sectors requiring high-quality translations, such as legal and technical documentation.

Newly Added Languages


The 34 languages added to the T-400 high-precision mode include: Mongolian, Welsh, Somali, Basque, Galician, Tajik, Sundanese, Kurdish, Telugu, Georgian, Gujarati, Nyanja, Swahili, Corsican, Hausa, Igbo, Xhosa, Pashto, Hawaiian, Shona, Punjabi, Afrikaans, Sindhi, Frisian, Samoan, Scottish Gaelic, Maori, Esperanto, Cebuano, Malagasy, Amharic, Sotho, Yoruba, and Yiddish.

Expanded Use Cases


With the recent update, the high-precision mode of T-400 can now be applied in broader scenarios, including sharing manuals with overseas branches and translating multilingual contracts or technical documents. The increased accuracy of translations minimizes the need for subsequent checks and revisions, significantly reducing the time and costs associated with translation processes.

Director's Commentary


Atsunori Shinoda, the development manager of T-400, noted, "We received numerous requests from T-400 users wanting high-precision mode to support more languages. With this update, all languages previously supported by traditional translation methods can now utilize high-precision mode. Our internal research has shown that high-precision mode provides superior translation quality not only in Japanese and English but across many languages. We hope to meet the diverse translation needs of our users and enhance their multilingual operations continuously."

Future Prospects


Rosetta aims to continue expanding the supported languages and improving translation accuracy. They welcome user feedback and requests for additional features, striving to create a translation environment that meets the challenges and aspirations of their clients.

About T-400


T-400 is a high-precision industrial translation AI that combines customization capabilities to replicate specialized documents with the fluency that generative AI provides. Unlike traditional industrial and specialized translations, the system enables users to leverage their existing translation assets without the need for a costly dedicated engine, reflecting accurate expressions and styles in the translations. Furthermore, the ultra-high-precision (considered) mode—with the integration of agentic AI—has dramatically improved translation accuracy, achieving a sentence-level revision necessity rate of just 0.05%, thus facilitating almost fully automated translations. This mode identifies possible translation errors and highlights them, significantly streamlining the translation review process.

About Metarial Group


Metarial Group is committed to its corporate mission of "liberating people from the constraints of location, time, and language" and holds the number one position in the domestic translation market. They cater to over 2,000 fields, including legal, pharmaceutical, financial, chemical, IT, machinery, and electrical electronics, providing completely customized AI development services aimed at solving client challenges and fostering innovative futures.

For inquiries regarding T-400, free trials, and information on becoming a distribution partner, check Rosetta's official website here.


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Topics Consumer Technology)

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