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CHOSHU·DATA
Choshu Data · Tokyo — Japan's data access layer for AI

Japan is a world of data. We make it accessible.

Source, license, and build Japanese datasets for AI: speech, text, video, robotics, enterprise and evaluation data, with the rights worked out.

01 — Coverage

Fifteen categories. Every modality that touches Japan.

Each category opens to specific sourcing menus. Not every entry is a stocked dataset, and we label which are which.
02 — Honest labelling

We tell you what exists, and what we would have to find.

Ready to License

Dataset exists and our authority to license it has been verified.

Partner Sourced

Availability confirmed with a named rights-holding partner.

Custom Collection

Recorded or built to your specification, per project.

Sourcing on Request

We assess feasibility and search for rights-holders once you describe the need.

Entries are only marked Ready to License or Partner Sourced after rights are verified. Today's catalog lists sourcing capability.

03 — What we do

Six ways to get Japanese data into your pipeline.

  1. 01

    Japanese Dataset Licensing

    License existing Japanese datasets where rights have been verified.

  2. 02

    Proprietary Data Sourcing

    We locate rights-holders in Japan and negotiate AI training terms.

  3. 03

    Custom Data Collection

    Programs recorded or authored to your protocol, run in Japan.

  4. 04

    Curation & Structuring

    Native-language cleaning, annotation and schema design.

  5. 05

    Data Partnerships

    Standing relationships with publishers, institutions and enterprises.

  6. 06

    Evaluation & Human Feedback

    Native expert judgment, preference and safety data.

04 — Process

From a vague need to a delivered dataset.

01
Scope

You describe the model behavior to improve. We translate it into a data specification.

02
Source

We identify rights-holders or design a collection protocol in Japan.

03
Clear

Consent, license scope, privacy review and terms are documented before delivery.

04
Deliver

Native-reviewed data with a QA report, delivered securely in your schema.

Start here

Tell us what your model is missing.

Describe the data you need. We will respond with feasibility, rights approach and next steps.