Newsletter N°82 - November 2025
⚙️ Construction: A Generative AI System for Construction Site Risk Prediction
Haseko Corporation has developed and put into operation Kizuki AI, a generative artificial intelligence tool designed to assist site managers in anticipating potential hazards. Built on the open-source AI development platform “Dify,” the System aims to standardize knowledge related to on-site safety measures and optimize preventive interventions.
As of August 2025, the System was deployed across all 129 of the Company’s construction sites in the Tokyo metropolitan area, with plans underway to gradually expand its use to all project sites nationwide.
To eliminate construction site accidents, it is crucial that every site manager remains aware of potential risks and takes preventive measures. However, risk assessment often depends on individual experience, leading to possible oversight of certain hazards. Moreover, under current industry challenges such as labor shortages and restrictions on overtime work, there is an increasing need for more effective and data-driven methods to enhance safety practices.
By simply entering details such as the type and nature of the construction work, weather conditions, and temperature on a computer or smartphone, and uploading photos of the site, users can receive immediate alerts from the AI.
The System then generates predictions of possible risks, such as heatstroke or unstable scaffolding—and provides corresponding safety measures, raising awareness among site managers.

When a site manager uses the system, they input project details, weather, and temperature data on the input screen and upload a site photo. The AI’s predicted risks and recommended countermeasures are then displayed immediately on the results screen alongside the image.

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