xAI Colossus Memphis Phase 1

Compute

100K H100e

Chips

100,000

First operational

Sep 2, 2024

xAI Colossus Memphis Phase 1 is a large GPU cluster operated by xAI, located in the United States, in the private sector. It came online around September 2024. At that moment it ranked number 1 among known clusters.

It is built on 100,000 NVIDIA H100 SXM5 80GB. That amounts to about 100K H100e of AI compute. The cluster draws roughly 150 MW. Its hardware is estimated at $3.8B.

Epoch AI rates the certainty of this record as confirmed.

Full record

Owner: xAI
Users: xAI
Sector: Private
Status: Existing
Country: United States
Location: 3231 Riverport Rd, Memphis, TN 38109
Primary chip: NVIDIA H100 SXM5 80GB
Primary chip count: 100,000
Total AI chips: 100,000
H100 equivalents: 100K
8-bit throughput: 2×10²⁰ OP/s
Power capacity: 150 MW
Hardware cost: $3.8B
First operational: Sep 2, 2024
Rank when it came online: 1
Certainty: Confirmed