Facility

Project Rainier

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to January 10, 2026 (theinnermostloop.substack.com)

The world’s largest datacenter as of January 2026.

Development timeline

Newest reporting dates first. Reporting dates may differ from event dates.

2026-01-10: Project Rainier becomes the world's largest datacenter

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Operated by

Anthropic

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Project Rainier
Innermost Loop KB — secondary record
Reporting date: unknown
KB permalink: https://nicholsn.github.io/innermost-loop-kb/facilities/project-rainier
Attributed sources:
- Welcome to January 10, 2026 — https://theinnermostloop.substack.com/p/welcome-to-january-10-2026
This citation does not imply independent verification of linked-source claims.

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