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
Equinix TY2	Equinix	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Equinix TY3	Equinix	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Equinix OS1	Equinix	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
Digital Realty Tokyo	Digital Realty	Tokyo, Japan	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
Vantage Tokyo	Vantage Data Centers	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
STACK Tokyo	STACK Infrastructure	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Telehouse Tokyo Shinjuku	Telehouse	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Telehouse Osaka	Telehouse	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
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 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 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
AirTrunk TOK1 Tokyo East	AirTrunk	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk TOK2 Tokyo West	AirTrunk	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk OSK1 Osaka West	AirTrunk	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
AirTrunk OSK2 Osaka Downtown East	AirTrunk	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
NEXTDC TK1 Tokyo	NEXTDC	Tokyo, Japan	Planned	Not publicly disclosed	Not disclosed	High
Colt DCS Osaka Keihanna	Colt DCS	Osaka, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Shiohama	Colt DCS	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Inzai 1	Colt DCS	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Inzai 2	Colt DCS	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Inzai 3	Colt DCS	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Inzai 4	Colt DCS	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Inzai 5	Colt DCS	Tokyo, Japan	Under Construction	Not publicly disclosed	Not disclosed	High
Colt DCS Tokyo Yoshikawa	Colt DCS	Tokyo, Japan	Planned	Not publicly disclosed	Not disclosed	High
EdgeConneX Tokyo	EdgeConneX	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
PDG TY1 Tokyo	Princeton Digital Group	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High
PDG TY2 Tokyo	Princeton Digital Group	Tokyo, Japan	Operational	Not publicly disclosed	Not disclosed	High

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry