Natural Japanese
What to check in AI developed outside Japan
Key takeaway
Many leading AI models are developed outside Japan. Natural Japanese, honorific language, and specialist terminology can vary by service and task. Review real outputs yourself.
Check the language your business actually uses
Many leading AI models are developed outside Japan. Their Japanese has become much more natural in recent years, but nuances such as honorifics, business expressions, and specialist terms can still vary by task and service.
Natural, readable language
Does the Japanese read smoothly, rather than like a literal translation?
Honorifics and business writing
Is it sufficiently polite and accurate to send to a business partner? This matters especially for external documents.
Specialist and internal terminology
Does it correctly handle industry terms and expressions specific to your organization?
Natural Japanese is like an interpreter's skill. Even when the meaning is clear, awkward phrasing can distract the reader. Check especially carefully for text that customers will see.
Frequently asked questions
Why does Japanese-language quality matter?
Many AI models are developed outside Japan, so their Japanese needs checking. Honorifics and business expressions can differ considerably by task.
How should we check it?
Naturalness and accuracy matter most in external communications. Test your own documents and assess how the results read.
Based on the official pricing pages of OpenAI and Google AI, as of June 2026. Prices, model names, and specifications can change; check current official information before deciding. Estimates use USD 1 = JPY 160 and approximately 1.5 tokens per Japanese character. They are illustrative Japan-market references, not quotations or estimates for English-language text. This series does not recommend any particular service. Contact sales to confirm current product pricing, delivery, warranty, and support for your country.
Company, product, and service names mentioned are trademarks or registered trademarks of their respective owners.