Skip to main content

Anthropic's First Japan Data Center in Osaka: 500MW, ¥1 Trillion Bet

Anthropic's First Japan Data Center: A ¥1 Trillion Bet on Osaka

Anthropic is about to plant its first overseas computing flag in Kansai, Japan. The AI lab, known for keeping its compute close, is in final talks with NTT DATA to build a data center in Osaka. Sources say the deal could be signed within this fiscal year, with the facility partially operational by 2028.

500MW and a Trillion-Yen Price Tag

The planned capacity is a hefty 500 megawatts—enough to power a small city. Just the construction and infrastructure will likely exceed ¥1 trillion (around $6.7 billion). And that's before the AI chips arrive. The real spending spree is yet to come.

Power Play: Fuel Cells First

What's really interesting is how Anthropic plans to power the site. Instead of waiting for the grid to catch up, the company will initially use a "behind-the-meter" approach—generating electricity on-site with fuel cells. This lets the compute run first, while the surrounding infrastructure develops. In a world where AI data centers are scrambling for power, Anthropic's "light a small stove first" strategy shows pragmatic patience.

Why Osaka?

Osaka offers a strategic location on the western side of the Pacific, giving Anthropic a long-term base outside the U.S. It's not just about renting server racks; it's about embedding an entire compute lifeline—from power to training and inference—directly into the Japanese market.

What This Means

For Japan, this is a major vote of confidence in its tech infrastructure. For Anthropic, it's a bold move to secure computing capacity in a region that's becoming a key AI hub. And for the rest of us, it's another sign that the AI arms race is heating up—and it's hungry for power.

Key Points:

  • Anthropic and NTT DATA are in final negotiations for a 500MW data center in Osaka.
  • The project could cost over ¥1 trillion, with additional chip investments.
  • Initial power will come from on-site fuel cells, not the grid.
  • Operations may start as early as 2028.
  • The move secures Anthropic's first overseas compute base in Japan.