JapanFinance and insurance2023 – ongoingSompo Japan
Oshison LLM drafts answers to internal inquiries
Sompo Japan reported about 40% less work time for inquiries its AI could answer
Problem
Sompo Japan handled heavy inquiry traffic between agencies, branches and headquarters. Its existing knowledge search system left staff with substantial answer-writing work.
Approach
An internal engineering team developed Oshison LLM using company manuals and Q&A material. It displayed draft answers with reference documents for employees to review. After a fiscal 2024 trial, the insurer released it nationwide in June 2025.
Results
Takeaway
The time saving covered answerable inquiries, about 60% of the total. It did not measure a reduction across all inquiry work.
Categories
- Size
- Large enterprise
- Industry
- Finance and insurance
- Business function
- Internal work and knowledge management
- Innovation type
- Process innovation
- AI technology
- Generative AI
- Adoption
- Built in-house
- Evidence
- Company's own claim
Sources
Source summaries
The insurer described its internal development and nationwide rollout. It reported the trial saving for the approximately 60% of inquiries the system could answer.
Full details are in the original sources.