Polimill's Generative AI "QommonsAI" for Public Sector Adopts Azure OpenAI as Inference Foundation — GPT-5.4 in Foundry Models from Domestic Region to Serve Approximately 800 Municipalities and 300,000 Officials Nationwide
Polimill Inc. announced that its generative AI "QommonsAI" for the public sector has adopted Azure OpenAI in Foundry Models from a domestic region as its large language model (LLM) inference foundation. The latest frontier model, GPT-5.4, will be provided to approximately 800 municipalities and 300,000 local government officials across Japan, accelerating administrative digital transformation while ensuring data sovereignty.
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- 📰 Published: May 9, 2026 at 04:01
- 🔍 Collected: May 8, 2026 at 19:32
- 🤖 AI Analyzed: May 8, 2026 at 19:49 (17 min after Collected)
Polimill Inc. (Headquarters: Minato-ku, Tokyo; Representative Directors: Ayame Ito / Nonoka Taniguchi; hereinafter "Polimill") announced that its generative AI "QommonsAI" (Commons AI), developed and operated for the public sector, has adopted Azure OpenAI in Foundry Models from a domestic region, provided by Microsoft, as its large language model (LLM) inference foundation. The latest frontier model from OpenAI, "GPT-5.4," will be provided to administrative sites used by approximately 800 municipalities and 300,000 local government officials nationwide.
This adoption marks the first initiative in a collaboration between Polimill and Microsoft Japan Co., Ltd. (Headquarters: Minato-ku, Tokyo; hereinafter "Microsoft Japan") to utilize generative AI in the public sector.
■ Overview of this Adoption
QommonsAI is the largest administrative AI service in Japan, specialized for the public sector, utilized by approximately 800 municipalities and 300,000 officials nationwide. With this adoption, Azure OpenAI's domestic region will be integrated into QommonsAI's LLM inference layer, providing high-performance models, including the latest frontier model "GPT-5.4," from data centers within Japan. This means that LLMs operating in Azure OpenAI's domestic region will function as a core layer of the common infrastructure supporting administrative tasks for approximately 800 municipalities nationwide.
■ Why "Azure OpenAI × Domestic Region"?
For municipalities to use generative AI in their operations, domestic data retention and clear legal jurisdiction are indispensable requirements. By adopting Azure OpenAI's domestic region, input/output data to the LLM will be processed in data centers within Japan, and legal jurisdiction will belong to Japan. This enables AI utilization in an environment compliant with municipalities' information security policies. Additionally, GPT-5.4 is OpenAI's latest frontier model, positioned as a "significant advancement in real-world multimodal workloads."
It supports "full-resolution image processing" that handles images exceeding 10 million pixels without compression. This allows for the reading of forms, handwritten documents, and diagrams, which previously required a combination of multiple OCR engines and layout detection tools, to be completed in a single processing pass by a single model. We are reaching a level where tasks previously performed manually can be completed by the model alone.
■ Immediate Deployment to Approximately 800 Municipalities — QommonsAI as a Common Infrastructure
With the adoption of Azure OpenAI's domestic region, OpenAI models, including GPT-5.4, will be immediately deployed to administrative tasks in approximately 800 municipalities nationwide via QommonsAI. The ability to use the latest models directly from existing environments without requiring additional contracts or individual settings for each municipality is a structural strength of QommonsAI as a common platform for the public sector, rather than a standalone SaaS. Each municipality will have an environment to utilize frontier models in the domestic region for various tasks, such as digitizing paper documents, summarizing meeting minutes, and extracting policy evidence.
■ Future Collaboration
Polimill and Microsoft Japan will deepen their cooperation to further promote the use of generative AI in the public sector, starting with this adoption. Specifically, they are considering collaboration in the following areas:
(1) Rapid Public Deployment of Latest Models
Promote the rapid deployment of new models to municipal sites via QommonsAI when they are added to Azure OpenAI.
(2) Advanced AI Utilization in the Public Sector
Through the development and verification of use cases specialized for administrative tasks, gradually expand the scope of AI utilization from routine tasks to external data linkage tasks, and even to core business areas.
(3) Development of a Safe and Secure AI Usage Platform
Work on building a common platform that municipalities can safely introduce generative AI, from the perspectives of data sovereignty, security, and governance.
■ Endorsement from Microsoft Japan Co., Ltd.
"Polimill Inc. has built Japan's largest generative AI platform for the public sector and is steadily leading Japan's administrative DX. At a time when municipalities face both financial constraints and personnel shortages, generative AI is not just a business support tool but is increasingly becoming a new labor foundation that sustainably supports public services. In this context, QommonsAI functions as a common platform for municipalities nationwide, rapidly delivering the latest frontier model 'GPT-5.4' on Azure OpenAI's domestic region to administrative sites.
This adoption marks the first initiative in a collaboration between Polimill and Microsoft Japan Co., Ltd. (Headquarters: Minato-ku, Tokyo; hereinafter "Microsoft Japan") to utilize generative AI in the public sector.
■ Overview of this Adoption
QommonsAI is the largest administrative AI service in Japan, specialized for the public sector, utilized by approximately 800 municipalities and 300,000 officials nationwide. With this adoption, Azure OpenAI's domestic region will be integrated into QommonsAI's LLM inference layer, providing high-performance models, including the latest frontier model "GPT-5.4," from data centers within Japan. This means that LLMs operating in Azure OpenAI's domestic region will function as a core layer of the common infrastructure supporting administrative tasks for approximately 800 municipalities nationwide.
■ Why "Azure OpenAI × Domestic Region"?
For municipalities to use generative AI in their operations, domestic data retention and clear legal jurisdiction are indispensable requirements. By adopting Azure OpenAI's domestic region, input/output data to the LLM will be processed in data centers within Japan, and legal jurisdiction will belong to Japan. This enables AI utilization in an environment compliant with municipalities' information security policies. Additionally, GPT-5.4 is OpenAI's latest frontier model, positioned as a "significant advancement in real-world multimodal workloads."
It supports "full-resolution image processing" that handles images exceeding 10 million pixels without compression. This allows for the reading of forms, handwritten documents, and diagrams, which previously required a combination of multiple OCR engines and layout detection tools, to be completed in a single processing pass by a single model. We are reaching a level where tasks previously performed manually can be completed by the model alone.
■ Immediate Deployment to Approximately 800 Municipalities — QommonsAI as a Common Infrastructure
With the adoption of Azure OpenAI's domestic region, OpenAI models, including GPT-5.4, will be immediately deployed to administrative tasks in approximately 800 municipalities nationwide via QommonsAI. The ability to use the latest models directly from existing environments without requiring additional contracts or individual settings for each municipality is a structural strength of QommonsAI as a common platform for the public sector, rather than a standalone SaaS. Each municipality will have an environment to utilize frontier models in the domestic region for various tasks, such as digitizing paper documents, summarizing meeting minutes, and extracting policy evidence.
■ Future Collaboration
Polimill and Microsoft Japan will deepen their cooperation to further promote the use of generative AI in the public sector, starting with this adoption. Specifically, they are considering collaboration in the following areas:
(1) Rapid Public Deployment of Latest Models
Promote the rapid deployment of new models to municipal sites via QommonsAI when they are added to Azure OpenAI.
(2) Advanced AI Utilization in the Public Sector
Through the development and verification of use cases specialized for administrative tasks, gradually expand the scope of AI utilization from routine tasks to external data linkage tasks, and even to core business areas.
(3) Development of a Safe and Secure AI Usage Platform
Work on building a common platform that municipalities can safely introduce generative AI, from the perspectives of data sovereignty, security, and governance.
■ Endorsement from Microsoft Japan Co., Ltd.
"Polimill Inc. has built Japan's largest generative AI platform for the public sector and is steadily leading Japan's administrative DX. At a time when municipalities face both financial constraints and personnel shortages, generative AI is not just a business support tool but is increasingly becoming a new labor foundation that sustainably supports public services. In this context, QommonsAI functions as a common platform for municipalities nationwide, rapidly delivering the latest frontier model 'GPT-5.4' on Azure OpenAI's domestic region to administrative sites.