Significantly Streamlining Construction Document Creation! Launch of 'Koji Shoru AI'
EARTHBRAIN has launched 'Koji Shoru AI,' a new service that significantly streamlines document creation tasks in construction sites. By automatically generating drafts of construction plans using generative AI, it aims to reduce traditional creation time by approximately 40%, contributing to improving long working hours and productivity in the construction industry.
📋 Article Processing Timeline
- 📰 Published: April 1, 2026 at 19:00
- 🔍 Collected: April 1, 2026 at 10:15
- 🤖 AI Analyzed: April 21, 2026 at 08:54 (478h 39m after Collected)
EARTHBRAIN Co., Ltd. (Representative Director and President: Akinori Onodera, hereinafter referred to as EARTHBRAIN) is pleased to announce the launch of its new service, 'Koji Shoru AI,' starting today, which aims to streamline document creation tasks at construction sites.
This service utilizes generative AI to automatically create drafts of construction plans, significantly reducing traditional document creation time and contributing to the improvement of long working hours and productivity, which are urgent issues in the construction industry.
■ Background and Aim
Currently, the construction industry faces numerous challenges, including compliance with overtime regulations (the '2024 problem'), severe labor shortages, and an aging workforce. General contractors' construction managers, in particular, are burdened with extensive document creation tasks, and it has traditionally taken more than 5 days to create a construction plan.
'Koji Shoru AI' was developed with the aim of maximizing the use of generative AI to eliminate the need for 'searching for materials, transcribing, and writing documents' in document creation, thereby significantly reducing the time required to create construction plans. Furthermore, the ability to edit the generated construction plans allows engineers' expertise to be put into practice in the shortest possible time. This provides an environment where engineers can concentrate on higher value-added tasks such as construction planning and safety management.
■ Image of Introduction Effects
The introduction of this service is expected to significantly shorten the time required to create construction plans.
・Creation time (per case): Approximately 125 hours → Approximately 75 hours (approx. 40% reduction *1)
・Cost reduction effect (when handling 10 cases annually): Equivalent to approximately 2 million yen per year (*2)
*1 Comparison with traditional document creation time (according to our research). The reduction rate varies depending on the scale and conditions of the construction project.
*2 Based on our estimates.
EARTHBRAIN will continue to promote the digitalization of all information at construction sites through the utilization of digital technology, aiming to improve on-site productivity, safety, and environmental performance, and to create smart and clean future construction sites.
'Koji Shoru AI' Overview
1. Main Features
(1) Automatic generation of construction plan drafts (*3)
By simply uploading materials such as past construction plans, client's construction management standards, and quantity calculation sheets related to the current project, AI analyzes the content and automatically generates a draft of the construction plan. It automatically creates construction methods aligned with the current project's work types, as well as lists of completion shape, quality, and photo management standards, based on the format and nuance of past construction plans.
(2) Intuitive editing interface that anyone can easily use
The generated draft can be edited on a dedicated screen designed for ease of use. Users can intuitively add/modify text, edit tables, and insert images. Additionally, the reference materials used by the AI can be viewed side-by-side, allowing for smooth double-checking of content. Completed documents can be output in Excel or PDF format.
(3) Assetization of organizational knowledge and promotion of human resource development
By centrally managing construction plan data with Koji Shoru AI, it can be utilized as a company asset. Furthermore, by having AI replace the creation process, which tends to be individualized as personal know-how, even inexperienced personnel can create high-quality documents. This directly leads to an overall improvement in the organization and efficient human resource development.
*3 This function is partially available at the time of release.
This service utilizes generative AI to automatically create drafts of construction plans, significantly reducing traditional document creation time and contributing to the improvement of long working hours and productivity, which are urgent issues in the construction industry.
■ Background and Aim
Currently, the construction industry faces numerous challenges, including compliance with overtime regulations (the '2024 problem'), severe labor shortages, and an aging workforce. General contractors' construction managers, in particular, are burdened with extensive document creation tasks, and it has traditionally taken more than 5 days to create a construction plan.
'Koji Shoru AI' was developed with the aim of maximizing the use of generative AI to eliminate the need for 'searching for materials, transcribing, and writing documents' in document creation, thereby significantly reducing the time required to create construction plans. Furthermore, the ability to edit the generated construction plans allows engineers' expertise to be put into practice in the shortest possible time. This provides an environment where engineers can concentrate on higher value-added tasks such as construction planning and safety management.
■ Image of Introduction Effects
The introduction of this service is expected to significantly shorten the time required to create construction plans.
・Creation time (per case): Approximately 125 hours → Approximately 75 hours (approx. 40% reduction *1)
・Cost reduction effect (when handling 10 cases annually): Equivalent to approximately 2 million yen per year (*2)
*1 Comparison with traditional document creation time (according to our research). The reduction rate varies depending on the scale and conditions of the construction project.
*2 Based on our estimates.
EARTHBRAIN will continue to promote the digitalization of all information at construction sites through the utilization of digital technology, aiming to improve on-site productivity, safety, and environmental performance, and to create smart and clean future construction sites.
'Koji Shoru AI' Overview
1. Main Features
(1) Automatic generation of construction plan drafts (*3)
By simply uploading materials such as past construction plans, client's construction management standards, and quantity calculation sheets related to the current project, AI analyzes the content and automatically generates a draft of the construction plan. It automatically creates construction methods aligned with the current project's work types, as well as lists of completion shape, quality, and photo management standards, based on the format and nuance of past construction plans.
(2) Intuitive editing interface that anyone can easily use
The generated draft can be edited on a dedicated screen designed for ease of use. Users can intuitively add/modify text, edit tables, and insert images. Additionally, the reference materials used by the AI can be viewed side-by-side, allowing for smooth double-checking of content. Completed documents can be output in Excel or PDF format.
(3) Assetization of organizational knowledge and promotion of human resource development
By centrally managing construction plan data with Koji Shoru AI, it can be utilized as a company asset. Furthermore, by having AI replace the creation process, which tends to be individualized as personal know-how, even inexperienced personnel can create high-quality documents. This directly leads to an overall improvement in the organization and efficient human resource development.
*3 This function is partially available at the time of release.