NTT Data and Anthropic Near Multi-Billion-Dollar Agreement for Landmark AI Data Center in Osaka

TOKYO — In what represents a monumental leap forward for Japan’s digital infrastructure and the global generative artificial intelligence landscape, telecommunications and IT services giant NTT Data Group is reportedly on the verge of finalizing a landmark agreement with AI pioneer Anthropic. According to sources close to the negotiations, the prospective deal will see the construction of a massive, dedicated data center in Osaka, Japan, tailor-made to house and power Anthropic’s cutting-edge Claude AI models.

While representatives for both NTT Data and Anthropic declined to comment when initially approached by media outlets, the reported partnership underscores the escalating race among Big Tech and AI developers to secure physical infrastructure capable of handling the astronomical computing demands of next-generation artificial intelligence.

If realized, the project would not only mark Anthropic’s first dedicated infrastructure site in Japan but also stand as one of the most ambitious and capital-intensive technological undertakings in the nation’s recent history. With a construction price tag projected to reach up to ¥1 trillion ($6.3 billion USD) and total expenditures—including the integration of high-performance graphics processing unit (GPU) servers—expected to balloon into several trillion yen, the Osaka facility highlights the staggering financial realities of the modern AI boom.

Main Facts

The contours of the proposed agreement reveal an enterprise of unprecedented scale designed to cement Japan’s status as a premier hub for artificial intelligence development in the Asia-Pacific region:

• Location and Scope: The facility is slated for construction in Osaka, Japan’s major western economic hub. It will be the first data center in the country built exclusively to service Anthropic, the San Francisco-based creator of the Claude family of large language models.
• Financial Investment: Pure construction costs are estimated to reach up to ¥1 trillion ($6.3 billion). When factoring in the procurement and deployment of thousands of advanced AI-focused servers and graphic processors, the total cumulative investment is expected to soar into the multi-trillion-yen range.
• Power Capacity: The facility will demand up to 500 megawatts (MW) of electrical power once fully operational. This immense energy draw makes it comparable to a small city and positions the site as one of the single largest data centers in Japan.
• Timeline: The corporate partners are aiming to formally ink the deal by the end of March 2027, coinciding with the close of the Japanese fiscal year. If development proceeds on schedule, the first phases of the facility could open their doors as early as 2028.
• Infrastructure Backbone: NTT Data, a premier subsidiary of the broader Nippon Telegraph and Telephone (NTT) telecommunications group, brings world-class expertise to the table. Ranked third globally among data center operators by market share, NTT Data currently manages over 1,600 megawatts of operational capacity distributed across multiple international markets.

Chronology

The trajectory toward this historic infrastructure partnership has been shaped by a steady acceleration of AI adoption in Japan, shifting regulatory frameworks, and intensifying corporate maneuvering across the Indo-Pacific region:

Early 2024 – Mid 2024: Establishing a Foothold in Japan

Anthropic began actively expanding its footprint in the Japanese market, recognizing the country’s strong appetite for enterprise-grade AI solutions. This strategic push culminated in May, when Japanese industrial titan Hitachi announced a sweeping enterprise agreement to roll out Claude across its massive workforce of approximately 290,000 employees. This deal served as a major proof-of-concept for Anthropic’s enterprise capabilities in East Asia.

Late 2025 – Early 2026: Strategic Infrastructure Conversations

As demand for Claude models surged globally, Anthropic faced mounting pressure to secure dedicated, high-density compute capacity outside of North America. Discussions between NTT Data and Anthropic reportedly intensified as both entities recognized the mutual benefits of a dedicated facility in Japan, combining NTT’s unmatched engineering and real estate prowess with Anthropic’s rapidly scaling AI infrastructure needs.

October 2026: Public Leak and Industry Revelations

News of the near-finalized deal leaked via Nikkei Asia on Tuesday, October 13, 2026. The report sent ripples through the tech and financial sectors, bringing public attention to the unprecedented scale of the planned Osaka facility, its ¥1 trillion construction estimate, and its massive 500-megawatt power requirements.

March 2027 (Projected): Target Agreement Date

NTT Data and Anthropic have reportedly set a strict internal deadline to finalize and sign all binding contracts by the conclusion of Japan’s fiscal year on March 31, 2027.

2028 and Beyond (Projected): Phased Operational Launch

Construction is expected to commence immediately following contract finalization, with initial phases of the data center targeted to come online as early as 2028, paving the way for expanded AI training and inference capabilities based in Japan.

Supporting Data

Behind the sweeping headlines lie complex engineering challenges, shifting corporate alignments, and broad national strategies that illustrate why the Osaka project is uniquely challenging and vital:

The Energy Hurdle

The single greatest obstacle facing the NTT Data-Anthropic collaboration is not financial, but energetic. Drawing 500 megawatts of continuous power from the public electrical grid is a notoriously slow and bureaucratic process in Japan, particularly given post-Fukushima energy constraints and grid modernization timelines.

To circumvent potential grid bottlenecks, the project developers are actively exploring decentralized and alternative energy strategies. According to industry reports, the site will heavily investigate generating electricity directly on-site, potentially leveraging advanced fuel cell technology and other localized power-generation mechanisms to ensure uninterrupted, high-capacity energy delivery without straining local municipal grids.

NTT Data’s Global Standing

NTT Data is far from a newcomer to the hyperscale data center space. Operating as a core pillar of the NTT telecommunications empire, the company commands a top-three position in the global data center market share standings. With a proven track record of managing over 1,600 megawatts of active capacity spanning North America, Europe, and Asia, NTT Data possesses the logistical muscle, engineering know-how, and supply chain relationships required to deliver a project of this magnitude.

Regional Expansion and Global Competition

Anthropic’s ambitions are not restricted to the Japanese archipelago. Industry reports indicate that the AI developer is actively scouting locations for additional hyperscale data centers across other Asian countries, where regional governments are aggressively competing to position themselves as premier AI hubs. Simultaneously, in the Southern Hemisphere, the Australian Financial Review has reported that Anthropic is engaged in ongoing dialogues with local Australian firms regarding infrastructure expansion down under.

Japan’s National AI Strategy

The Osaka data center proposal aligns seamlessly with Japan’s broader national economic policy. The Japanese government has launched an aggressive, multi-year data center investment push designed to transform the country into an advanced digital economy. Tokyo has established a staggering target of channeling ¥32.7 trillion in combined public and private capital into domestic data centers, cloud computing infrastructure, and battery storage solutions by 2035. Beyond Osaka, large-scale data center sites are also currently planned or under development in prefectures such as Akita and Kagoshima.

Official Responses

As of publication, the corporate entities central to the transaction have maintained a cautious posture regarding the specifics of the Nikkei Asia report:

• NTT Data: Representatives for NTT Data declined to comment on the ongoing negotiations, citing corporate policy regarding unfinalized commercial agreements and proprietary client discussions. However, company executives have consistently emphasized their commitment to expanding their global data center portfolio to support the burgeoning workloads of generative AI enterprises.
• Anthropic: Spokespeople for Anthropic likewise declined to verify the details of the Osaka project. Nevertheless, the company has repeatedly underscored its strategic dedication to international expansion, enterprise partnerships, and securing dedicated compute infrastructure to sustain the rapid evolution of its Claude models.
• Japanese Government Officials: While declining to speak directly to private corporate negotiations, trade and digital infrastructure ministers have praised private-sector investments that advance the nation’s 2035 digital transformation goals, framing robust data center infrastructure as a cornerstone of national security and economic competitiveness.

Implications

The prospective partnership between NTT Data and Anthropic carries profound implications for the global technology ecosystem, Japanese industrial policy, and the geopolitical dynamics of artificial intelligence:

1. Decentralization of AI Infrastructure

For years, the vast majority of frontier AI training and heavy inference workloads have been concentrated in a handful of geographical clusters, primarily in the United States. By establishing a dedicated, multi-billion-dollar hyperscale facility in Osaka, Anthropic is pioneering a decentralized approach to AI infrastructure. This move ensures lower latency for Japanese and Asian enterprise clients, complies with localized data residency mandates, and builds resilience against regional disruptions.

2. A Blueprint for Power Innovation

The 500-megawatt energy demand of the proposed Osaka site serves as a watershed moment for the data center industry. As AI models scale exponentially, the traditional model of tapping passively into municipal power grids is becoming increasingly untenable. By pioneering on-site power generation and fuel cell integration, NTT Data and Anthropic may inadvertently author the operational playbook for how future high-density AI data centers circumvent global energy constraints.

3. Japan’s Rise as an AI Superpower

For Japan, successfully attracting a dedicated facility for one of the world’s leading AI labs represents a major validation of its industrial strategy. By pairing aggressive government investment targets (such as the ¥32.7 trillion infrastructure push) with world-class telecommunications partners like NTT Data, Japan is actively transforming itself from a consumer of imported technologies into a critical physical and operational nexus for the global artificial intelligence revolution.

As the March 2027 target date for the final agreement approaches, the tech world will be watching Osaka closely—not only to witness the birth of a colossal new digital fortress, but to observe how the pioneers of AI and telecommunications solve the physical limits of the digital age.