#Japan #Tokyo #Legal AI #Shihou AI #Prime Partners Consulting

Introduction

On September 22, 2025, Prime Partners Consulting, headquartered in Akasaka, Minato City, Tokyo, introduced a groundbreaking AI service titled "Shihou AI【法務】." This new addition is part of the Shihou AI series, catering specifically to legal professionals by providing reliable answers drawn solely from e-Gov's legal database. The aim is to enhance trustworthiness and transparency, providing a robust AI chat tool for legal inquiries. Users can access this tool for free at this link.

Background on Shihou AI【法務】

The development of Shihou AI【法務】 stems from the ongoing efforts of Prime Partners Consulting and its affiliate, Prime Partners Tax Corporation, to equip professionals across various fields with reliable AI tools. Previously, they offered services like Shihou AI【税務】, Shihou AI【相続】, and Shihou AI【会計】, each aimed at providing trustworthy information.

In the legal field, where accuracy is paramount—particularly regarding contract reviews and compliance with legal amendments—the need arose for a specialized tool that mitigates the risk associated with typical AI models, which often lack clear sources. Thus, Shihou AI【法務】 was born as a reliable tool focusing solely on public legal information.

Impressive Results from a Regulation Examination

The efficacy of Shihou AI was put to the test during the 2025 Judicial Examination, where it achieved an astonishing 95% accuracy rate. This rate ranks it among the top legal AI solutions available. Specifically, during the written examination in civil law, Shihou AI performed with precision, securing a position equivalent to the 4th place among 3,815 test takers. The outstanding results further validate the accuracy of the service, backed by its commitment to exclusively referencing e-Gov legal texts.

While two incorrect responses were noted, they pertained to case law references—a challenge that many other AI systems also faced. Future iterations of Shihou AI will incorporate case law references to further enhance its accuracy.

The Strengths of Shihou AI【法務】

Beyond its impressive accuracy, Shihou AI is built around two key principles: reliability and transparency.

1. Exclusivity of e-Gov Legal Data [Reliability]

By focusing solely on data sourced from e-Gov's legal database, Shihou AI offers users a clean, reliable set of information with minimal risk of misinformation that can often plague general AI models.

2. Transparent Citations in Responses [Transparency]

Each answer provided by Shihou AI includes references to specific legal article numbers, allowing users to quickly access primary information and verify the responses. This easy access empowers users to find and confirm the exact legal texts referenced in responses swiftly.

For instance, if a user inquires about the cooling-off period for mail order sales, Shihou AI can directly cite the relevant provisions from the specific laws.

While quantitative validity from the judicial examinations has been demonstrated, it is acknowledged that achieving 100% accuracy is a complex challenge inherent to AI nature.

3. Support for Legal Professionals across Various Disciplines

With the launch of Shihou AI【法務】, a new support infrastructure is available for professionals beyond legal fields, such as certified public accountants and tax professionals. They can now access reliable legal bases relevant to their areas, thus enhancing their operational efficiency. For instance:

• - In tax audits, referencing relevant sections of the National Tax General Act or the Companies Act becomes efficient and straightforward.
• - When understanding legal implications tied to corporate restructuring or stock option issuance, it’s essential to cross-reference legal articles, easily facilitated by Shihou AI.

With the orchestration of three dedicated AIs—Shihou AI【税務】, Shihou AI【会計】, and Shihou AI【法務】—it enhances the ability to tackle complex, cross-disciplinary cases while providing professionals with well-rounded, valuable insights for their clients.

Access and Future Prospects

Shihou AI【法務】 is offered completely free of charge without requiring user registration. However, due to a surge in traffic, some users may experience temporary access issues, and share that this is currently in the trial phase that may encounter unpredictable delays. A formal version is in development, and updates will improve the user experience.

Prime Partners Consulting continues to advance the Shihou AI series, planning to roll out AI tools that cover areas such as labor, registration, and intellectual property. Feedback from users will guide continuous improvements and expansion of functionalities to meet professional needs better.

Ultimately, the goal is to make Shihou AI a crucial tool for not only legal professionals but also for the general public seeking accurate information. This commitment to reliability and usability remains central to all future developments in the Shihou AI series.