Irwin&Co Unveils Japan's First Local ChatGPT-based Custom SaaS for Enterprises

Introduction

Irwin&Co, a Tokyo-based company, has officially launched 'Irwin&Co ChatAI', Japan's first enterprise-focused custom SaaS equipped with Local ChatGPT (gpt-oss) capabilities. This innovative service aims to address the pressing challenge of securely utilizing generative AI in industries where confidentiality is paramount, such as finance and healthcare. The launch is particularly significant for organizations that are unable to upload sensitive information to the internet, addressing a critical pain point in the workforce.

Background

In sectors like finance, healthcare, and public infrastructure, the risk of information leakage is a severe concern. As companies look to improve operational efficiency and customer engagement, the demand for utilizing proprietary data within AI frameworks has surged. The release of OpenAI's open-source large language model, gpt-oss, on August 5, 2025, made it feasible to implement high-functionality Local LLM services. This motivated Irwin&Co to develop a solution that perfectly balances 'safety' and 'efficiency'.

Key Features of Irwin&Co ChatAI

1. Complete Offline Operation: The model runs solely on in-house servers. External communication is physically blocked, dramatically reducing the risks of hacking and information leakage.
2. Customized Model Selection and Support: Depending on the intended use and budget, Irwin&Co will help customers choose the most suitable open-source LLM (e.g., gpt-oss) and provide comprehensive assistance from environment setup to implementation.
3. Ongoing Support Post-Implementation: Irwin&Co guarantees continued support, including feature additions, further tuning, and operational assistance.

Comparison with Traditional Chatbot Services

Unlike Azure OpenAI Service, which operates on Microsoft’s cloud infrastructure requiring internet communication, the Irwin&Co ChatAI is fully offline. The model resides on the company's servers, eliminating external communication entirely. This fundamental difference significantly reduces the risk of hacking from external sources, allowing its use in heavily regulated industries or with confidential data that cannot be exported outside the organization.

Feature	Irwin&Co ChatAI	Azure OpenAI Service
----	----	---------
Location	In-house server	Microsoft Azure Cloud
External Communication	None (Fully offline)	Yes (Secure Communication)
Model Ownership	Modifiable with permission	Owned by Microsoft (no modifications allowed)
Security	Excellent (Physical disconnection from the Internet)	Fair (Dependent on external systems)
Compliance with Regulations	Suitable for finance, healthcare, defense, etc.	Certain uses not permitted

Potential Use Cases

1. Finance Sector
- Loan Approval Assistance: Analyze internal loan data and credit models to provide immediate responses to staff inquiries.
- Internal Audit Support: Search regulations and audit records, identifying potential legal violations or risks.
- Financial Product FAQ Bot: Respond to inquiries about the latest products by referring to up-to-date internal manuals.

2. M&A Sector
- Risk Identification: Extract risks from final contracts and due diligence documents, generating a DD issue list.
- Automatic Data Masking: Automatically mask personal data within confidential information disclosed by sellers.
- Draft Generation: Generate initial drafts of teasers, information memorandums, and due diligence reports.

3. Healthcare Sector
- In-Hospital Consultation AI: Based on past medical records, instantly suggest similar cases or diagnostic guidelines in response to physician inquiries.
- Automated Document Creation: Automatically draft surgical records and referrals, all handled internally.
- Medication Query Bot: Reference the in-house medication database for immediate answers about prescriptions and side effects.

4. Local Administration
- Responding to Resident Inquiries: Handle a wide range of questions, from moving procedures to childcare support and waste disposal rules.
- Information Provision During Disasters: Remain functional even when communication lines are down during emergencies.

Announcement of Exhibition Participation

Irwin&Co ChatAI will be showcased at The JSSA TOKYO Meetup. This event, featuring six prominent panel discussions, 100 short pitches, and 80 exhibiting companies, is set for August 18, 2025, at the 港区立産業振興センター. Join us as we demonstrate our revolutionary service live!

Event Details:
Date: August 18, 2025, from 13:00 to 21:00
Booth Time: 16:30 to 19:30
Location: 港区立産業振興センター10F, 11F, 港区芝5-36-4
Transportation: A 4-minute walk from JR Tamachi Station and Mita Station
Application Form: Register Here
Organizer: General Incorporated Association of Japan Startup Support Association
Participation Fee: ¥2000
Capacity: 1000 participants

About Irwin&Co

Company Name: Irwin&Co
Representative: CEO Arwin Kai
Website: Irwin&Co Official Site
Location: 1-12-27 Taishido, Setagaya, Tokyo, Japan
Irwin&Co specializes in providing effective AI solutions—not just implementing AI but ensuring it produces results. We are committed to engaging with generative AI, undertaking SaaS development, and providing training to support comprehensive approaches that effectively solve business challenges and promote growth.