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 227 sourced facilities and 11 operators into a single queryable graph for AI agents, traders and procurement teams.

Facility	Operator	Location	Status	Accelerators	Recorded MW	Confidence
TELEHOUSE Sapporo	KDDI	Sapporo, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Sendai	KDDI	Sendai, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Oyama	KDDI	Oyama, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Tokyo Shinjuku	KDDI	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Tokyo Toyosu	KDDI	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Tokyo Tama	KDDI	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Yokohama	KDDI	Yokohama, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Osaka	KDDI	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Nagoya	KDDI	Nagoya, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Fukuoka	KDDI	Fukuoka, Japan	Operational	Not publicly disclosed	Not disclosed	High
TELEHOUSE Okinawa	KDDI	Okinawa, Japan	Operational	Not publicly disclosed	Not disclosed	High

KDDI

How many datacenters does KDDI operate?

Which GPUs does KDDI deploy?

In which countries does KDDI operate?

Company → Datacenter → GPU → Customer → Industry