04BBuildout · frontier site· cluster ledger reviewed 2026-10-14
Project Rainier AI datacenter
Anthropic · AWS · New Carlisle, Indiana. The ledger records it as operating, with 910 MW energized of 2.2 GW planned. Every figure below traces to a dated public source.
Ledger figures
- Operator
- Anthropic · AWS
- Location
- New Carlisle, Indiana
- Status
- Operating
- Current power
- 910 MWest — estimated / secondary-source figure
- Planned power
- 2.2 GW
- Accelerators
- ~1.05M Trainium2 live (tracker estimate); ~1 GW Trainium2+3 across AWS by end-2026
- Announced
- 2024-12-03
- First power
- 2025-10
Flagship of the Amazon–Anthropic expansion (up to 5 GW, >$100B AWS commitment over 10 years). Live figure is tracker IT load; planned figure is Amazon’s 2.2 GW campus, which the tracker models as ≈1.9 GW IT by Q1 2028.
Power figures are IT load where trackers publish it and campus power where only the operator’s headline exists; each source below names its basis. A figure marked est rests on at least one source other than the operator’s own announcement.
Sources behind each figure
- Current power · est ≈910 MW IT live (tracker estimate) — Epoch AI data-center directory,
- Planned power Project Rainier in Northern Indiana—a 2.2-gigawatt data center campus — Amazon,
- Accelerators · est ≈1,045K Trainium2 installed (tracker estimate) — Epoch AI data-center directory,
- Accelerators Nearly half a million Trainium2 chips at activation, Oct 2025 — Amazon,
- Accelerators Nearly 1 GW of Trainium2+3 capacity online across AWS by end-2026; up to 5 GW total — Anthropic,
- Announced Project Rainier disclosed as an EC2 UltraCluster built with Anthropic, Dec 3, 2024 — Amazon (AWS press release),
- First power AWS activates Project Rainier, now fully operational, Oct 2025 — Amazon,
Background reading: Project Rainier on AI Wiki. AI Wiki is run by the same team as AI Compute Tracker.