Question 1

What is an AI datacenter?

Accepted Answer

An AI datacenter is a facility purpose-built or retrofitted for GPU and accelerator workloads — typically at rack densities above 30 kW, with liquid-cooling readiness and high-bandwidth fabric (InfiniBand NDR, NVLink, or Spectrum-X). At least 40% of IT load runs AI training or inference on GPUs such as NVIDIA H100, H200, B200, or GB200 NVL72.

Question 2

Which datacenter has the most GPUs?

Accepted Answer

As of 2026, xAI Colossus in Memphis, Tennessee holds the title of the world's largest single-site GPU deployment, with more than 200,000 NVIDIA H100 and H200 GPUs in one InfiniBand domain. Meta Hyperion (Louisiana) and OpenAI Stargate Abilene (Texas) are scaling toward gigawatt-class deployments that will overtake it within the next 18 months.

Question 3

What is the largest AI cluster?

Accepted Answer

xAI Colossus is the largest contiguous AI training cluster in 2026, exceeding 200,000 NVIDIA H100/H200 GPUs on a single InfiniBand NDR 400G fabric. Meta's Hyperion build and OpenAI's Stargate program are constructing multi-site fabrics that will exceed one million accelerators across coupled campuses by 2027.

Question 4

Which GPU cloud is cheapest for H100?

Accepted Answer

On-demand: Together AI ($1.75/hr) and Voltage Park ($1.89/hr) lead. Reserved 1-year: Voltage Park ($1.20/hr) and Crusoe ($1.39/hr) are typically lowest. AWS p5 sits at the top of the price stack at ~$4.10/hr on-demand.

Question 5

How is Datacenter.computer different from a datacenter directory?

Accepted Answer

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes capacity, power, fabric and location across 833 sourced facilities and 40 operators into a single queryable graph for AI agents, traders and procurement teams.

Facility	Operator	Location	Status	Accelerators	Recorded MW	Confidence
NTT Chicago	NTT GDC	Chicago, IL, USA	Operational	Not publicly disclosed	Not disclosed	High
NTT Dallas	NTT GDC	Dallas, TX, USA	Operational	Not publicly disclosed	Not disclosed	High
NTT New York	NTT GDC	New York, NY, USA	Operational	Not publicly disclosed	Not disclosed	High
NTT Silicon Valley	NTT GDC	Santa Clara, CA, USA	Operational	Not publicly disclosed	Not disclosed	High
NTT Phoenix	NTT GDC	Phoenix, AZ, USA	Operational	Not publicly disclosed	Not disclosed	High
NTT Toronto	NTT GDC	Toronto, ON, Canada	Operational	Not publicly disclosed	Not disclosed	High
NTT London	NTT GDC	London, UK, United Kingdom	Operational	Not publicly disclosed	Not disclosed	High
NTT Frankfurt	NTT GDC	Frankfurt, Germany	Operational	Not publicly disclosed	Not disclosed	High
NTT Amsterdam	NTT GDC	Amsterdam, Netherlands	Operational	Not publicly disclosed	Not disclosed	High
NTT Paris	NTT GDC	Paris, France	Operational	Not publicly disclosed	Not disclosed	High
NTT Madrid	NTT GDC	Madrid, Spain	Operational	Not publicly disclosed	Not disclosed	High
NTT Johannesburg	NTT GDC	Johannesburg, South Africa	Operational	Not publicly disclosed	Not disclosed	High
NTT Tokyo	NTT GDC	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
NTT Osaka	NTT GDC	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
NTT Singapore	NTT GDC	Singapore, Singapore	Operational	Not publicly disclosed	Not disclosed	High
NTT Hong Kong	NTT GDC	Hong Kong, Hong Kong	Operational	Not publicly disclosed	Not disclosed	High
NTT Sydney	NTT GDC	Sydney, Australia	Operational	Not publicly disclosed	Not disclosed	High
NTT Mumbai	NTT GDC	Mumbai, India	Operational	Not publicly disclosed	Not disclosed	High
NTT Seoul	NTT GDC	Seoul, South Korea	Operational	Not publicly disclosed	Not disclosed	High

NTT GDC

How many datacenters does NTT GDC operate?

Which GPUs does NTT GDC deploy?

In which countries does NTT GDC operate?

Company → Datacenter → GPU → Customer → Industry