Skip to content
CHOSHU·DATA
Solutions / Large Language Models

Large Language Models

Japanese fluency is more than grammar. It is register, regional variation, professional vocabulary and cultural reference.
What this use case needs
01

Pretraining breadth beyond the open web

Licensed publishing, professional writing and technical documentation add registers that crawled text underrepresents.

02

Instruction and preference data written natively

Machine-translated instructions inherit English assumptions. Native-authored instructions and preference rankings teach tone, politeness and local norms.

03

Domain depth

Legal, financial and medical Japanese needs expert-authored or expert-reviewed data.

Common pitfalls

  • Training on translated data and measuring on translated benchmarks
  • Ignoring keigo: models that are fluent but impolite in business contexts
  • Unclear rights on 'publicly available' text
Relevant sourcing menus
Start here

Tell us what your model is missing.

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