Colossus 1

Compute capacity

275.8K H100e

IT power

340 MW

Capital cost

$13B

Colossus 1 is an AI data center operated by SpaceXAI, located in the United States (3231 Riverport Rd, Memphis, TN 38109). Its compute is used by Anthropic.

The site holds roughly 275,796 H100-equivalents of AI compute. It draws about 340 MW of power. Building and equipping it represents an estimated $13B of capital in 2025 dollars. It currently runs H100, H200, B200.

Power is supplied through MLGW. These figures are modelled estimates, not disclosures: Epoch AI derives them from permits, satellite imagery and reported spending, with an uncertainty of roughly 1.4x to 1.6x depending on the metric.

Timeline

Compute (H100e): 0 (2024-04-24) → 275.8K (2026-06-15)

Full record

Owner: SpaceXAI
Ownership confidence: Confident
Users: Anthropic (confident)
Country: United States
Location: 3231 Riverport Rd, Memphis, TN 38109
H100 equivalents: 275,796
Power: 340 MW
Total capital cost: $13B
Current chips: H100, H200, B200
All chips: H100, H200, B200
Energy suppliers: MLGW