PRESS RELEASE
Fujitsu launches made-in-Japan next-generation CPU FUJITSU-MONAKA and Fujitsu MONAKA Server for sovereign AI infrastructure
Achieving world-class AI inference performance through Japan-developed 2nm 3D-stacked CPU and server integrated, developed, and manufactured in Japan
Fujitsu Limited
Kawasaki, Japan, September 14, 2026
Fujitsu Limited today announced that it will begin global sales of its next-generation CPU, FUJITSU-MONAKA [1], designed and developed in Japan, starting November 2026. This will include sales of the processor as a standalone product to cloud and data center operators and server vendors. Additionally, the company will launch the made-in-Japan Fujitsu MONAKA Server equipped with the FUJITSU-MONAKA CPU, offering high reliability and power efficiency as a sovereign AI infrastructure. Fujitsu MONAKA Server will be made broadly available from November 2026 to data center operators, enterprises, and the academic and HPC sectors in Japan and Europe, as well as to the defense sector, contributing to national security.
The FUJITSU-MONAKA CPU integrates Fujitsu's extensive expertise in processor and server development, achieving world-class computational performance and data supply capabilities with a maximum operating frequency of 3.8GHz and memory transfer speed of 8800MT/s. It delivers twice the AI inference throughput and superior power efficiency compared to other CPUs, effectively halving the number of servers and power consumption required for equivalent processing loads.
Fujitsu MONAKA Server, powered by the FUJITSU-MONAKA CPU, enhances sovereign capabilities through domestic manufacturing, contributing to traceability and supply chain transparency. Furthermore, at a time when power and installation space are significant challenges for AI infrastructure expansion, this CPU server alone can build an AI inference platform. Its space-saving and power-efficient design allows for deployment in air-cooled data centers, significantly increasing customers' capacity for AI infrastructure expansion. Fujitsu MONAKA Server also supports future scalability through resource pooling technology and reduces cooling energy consumption with Fujitsu's long-cultivated cooling technologies.
Fujitsu is committed to supporting customers' autonomy and accountability by providing a sustainable sovereign AI infrastructure with high operability.
Moreover, with Fujitsu MONAKA Server at its core, Fujitsu will deploy a vertically integrated sovereign AI model that combines its proprietary AI technologies, such as the AI platform Fujitsu Kozuchi and enterprise-grade generative AI Takane, with industry-specific models. This will provide a sovereign AI platform with enhanced measures for traceability, security, and operational autonomy transparency, creating an environment where customers can utilize AI with peace of mind and confidence.
Background
In recent years, the expansion of generative AI has led to a shortage of computing resources and a rapid increase in power demand, posing new management and societal challenges. This has heightened the importance of low-power-consumption CPUs that can deliver higher processing performance with limited power. Simultaneously, there is a growing need for on-premises AI infrastructure that allows companies to manage and operate confidential information securely in-house, requiring AI infrastructure that can operate even in locations without specialized infrastructure like water cooling. Furthermore, with increasing geopolitical risks, interest in platforms that ensure supply chain reliability and transparency is also growing.
Features of FUJITSU-MONAKA and Fujitsu MONAKA Server
- FUJITSU-MONAKA CPU: Achieving High Performance, High Power Efficiency, and High Security
FUJITSU-MONAKA utilizes a 3D-stacked architecture with a state-of-the-art 2nm process for the core and a 5nm process for the cache and I/O sections. By combining optimal processes for each function, it enhances cost efficiency and achieves high power efficiency and performance through Fujitsu's unique ultra-low voltage operation technology. It delivers world-class computational performance and data supply capabilities with a maximum operating frequency of 3.8GHz and memory transfer speed of 8800MT/s. The CPU provides hardware acceleration for matrix operations, which are central to AI inference, using dedicated instructions. Combined with SVE2 vector operations and software optimization, it achieves twice the throughput for AI inference compared to other CPUs. This enables practical AI inference performance from the CPU alone, offering the flexibility to deploy at the necessary scale even in locations with power and cooling constraints.
Additionally, it features confidential computing [2] to protect data and applications running in memory with hardware encryption, supporting advanced AI utilization in secure environments, even in multi-tenant cloud environments.
Figure 1: Image of FUJITSU-MONAKA - Fujitsu MONAKA Server: Enhancing Transparency through Domestic Manufacturing for Sustainable Sovereign AI Infrastructure
The Fujitsu MONAKA Server is designed, developed and manufactured in Japan for sovereign applications. Manufacturing takes place at Fujitsu's Kasashima Plant. This ensures traceability by making the origin of components and manufacturing history visible and trackable, thereby strengthening supply chain transparency and reliability. Starting November 2026, Fujitsu will begin selling 2U (two CPUs) and 1U (one or two CPUs) rack-mount servers, ideal for AI agents and AI inference, in Japan and Europe.
The 1U server adopts CDI/CXL technology [3], allowing for optimal allocation of memory and accelerators beyond Fujitsu MONAKA Server's physical boundaries. This mitigates memory shortages, a common challenge in AI inference, and maximizes resource utilization efficiency, flexibly adapting to future large-scale AI models and workload changes. Furthermore, by leveraging Fujitsu's long-standing cooling technology, the 1U server can operate in ambient temperatures up to 40 degrees Celsius with air cooling and water temperatures up to 45 degrees Celsius with water cooling, without requiring specialized cooling infrastructure. This reduces server cooling power consumption by up to 80%. These features help control operating costs and contribute to reducing the environmental impact of data centers and promoting sustainable business operations.
Figure 2: Image of Fujitsu MONAKA Server for sovereign useLoading component...
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Future Plans
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Fujitsu Limited
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All company or product names mentioned herein are trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.
Date: 14 September, 2026
City: Kawasaki, Japan
Company: Fujitsu Limited
