iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
The available sources do not confirm that NTT DATA is in advanced talks to build a data center for Anthropic in Osaka, or that such a project would reach 500 MW or cost $6.3 billion. Those figures appear in a separate report about a possible Mubadala-backed project in Akita. NTT DATA’s reported capacity expansion is a third, company-wide plan—not evidence of either facility.
What is confirmed about the Osaka claim?
The claim combines a company, a prospective tenant, a location, a capacity and a price, but the sources available for this article do not verify that combination. They do not establish advanced talks between NTT DATA and Anthropic, a new Osaka facility, a 500 MW capacity, a $6.3 billion cost or a construction timetable.
That is not proof that private discussions do not exist. It means the project details should not be stated as fact based on the sources reviewed. NTT Group’s May 8, 2026 financial-results release provides general data-center business context, but the available excerpt does not confirm the alleged Osaka project (NTT Group financial results release).
Free tools Windows power users keep installed
One-click scans. No signup required.
Where do the 500 MW and $6.3 billion figures come from?
Arizton’s Japan data center market report, published in January 2026 and refreshed in September 2026, associates 500 MW and up to ¥1 trillion—reported as approximately $6.3 billion—with a possible Mubadala investment in an AI data center project in Akita Prefecture. The report describes an investment under consideration, not a confirmed build, final project cost or operating facility (Arizton Japan data center market report).
That distinction matters: the reported location is Akita, the investor under consideration is Mubadala, and the report does not establish Anthropic as a customer. The figures cannot be reassigned to an alleged NTT DATA–Anthropic project in Osaka.
How does NTT DATA’s expansion plan differ?
The same Arizton report separately describes NTT DATA’s plan to invest at least ¥1.5 trillion through 2033, targeting around 1 GW of total data-center capacity by adding about 750 MW. This is a national, company-wide expansion plan as described by a market-report source; it is not a stated capacity or budget for a single Osaka site.
| Reported item | Location and parties | Capacity and investment | Status and source |
|---|---|---|---|
| Possible AI data center | Akita Prefecture; Mubadala is reported as considering an investment. Anthropic is not identified as a tenant. | 500 MW; up to ¥1 trillion, reported as approximately $6.3 billion. These are proposal figures, not confirmed operating capacity or construction cost. | Under consideration, according to Arizton’s market report, published January 2026 and refreshed September 2026. |
| NTT DATA capacity expansion | Company-wide plan; not identified as one Osaka facility. | At least ¥1.5 trillion in investment through 2033; around 1 GW total capacity targeted, including about 750 MW in additions. | Described separately by Arizton’s market report. The figures should be attributed to that report. |
| Alleged NTT DATA–Anthropic Osaka project | Osaka; NTT DATA and Anthropic are named in the claim. | 500 MW and $6.3 billion are not verified for this project. | The reviewed sources do not confirm its existence, deal status, customer, capacity, cost or timetable. |
What does NTT DATA’s Osaka presence tell us?
NTT DATA’s 2025 corporate profile lists Osaka and Kyoto among its Japan locations and describes its data-center portfolio. This establishes regional footprint context. It does not show that NTT DATA is building a new 500 MW Osaka facility or that Anthropic would use one.
Quick Recap
Rank #3
What readers can conclude
- The sources reviewed do not verify the full claim of advanced NTT DATA–Anthropic talks for a 500 MW Osaka data center costing $6.3 billion.
- The 500 MW and up-to-¥1 trillion (approximately $6.3 billion) figures are tied by Arizton to a possible Mubadala-backed project in Akita, not the alleged Osaka project.
- NTT DATA’s reported plan to add about 750 MW is a separate company-wide expansion described by the same market-report source.
- NTT DATA’s listed Osaka presence is not evidence of a new facility, a particular tenant or a deal between the companies.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
