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 pricing, capacity, power, fabric, and latency across 240+ facilities and 40+ operators into a single queryable graph for AI agents, traders, and procurement teams.

Facility	Operator	Location	GPU	MW	PUE
Switch COLUMBUS1 West	Switch	Columbus, OH, USA	—	3	1.51
STACK Infrastructure COLUMBUS2 Park	STACK Infrastructure	Columbus, OH, USA	—	18	1.27
Iron Mountain COLUMBUS3 Park	Iron Mountain	Columbus, OH, USA	—	13	1.20
Switch COLUMBUS4 Campus	Switch	Columbus, OH, USA	—	10	1.49
Equinix COLUMBUS5 West	Equinix	Columbus, OH, USA	—	23	1.38
STACK Infrastructure COLUMBUS6 Central	STACK Infrastructure	Columbus, OH, USA	—	13	1.51
Iron Mountain COLUMBUS7 East	Iron Mountain	Columbus, OH, USA	—	21	1.35
Switch COLUMBUS8 Annex	Switch	Columbus, OH, USA	—	21	1.31
Prime Data Centers COLUMBUS9 Campus	Prime Data Centers	Columbus, OH, USA	—	23	1.35
eStruxture COLUMBUS10 Park	eStruxture	Columbus, OH, USA	—	4	1.42
Aligned Data Centers COLUMBUS11 North	Aligned Data Centers	Columbus, OH, USA	—	13	1.23
Flexential COLUMBUS12 Campus	Flexential	Columbus, OH, USA	—	20	1.31
Cologix COLUMBUS13 East	Cologix	Columbus, OH, USA	—	6	1.46
Digital Realty COLUMBUS14 East	Digital Realty	Columbus, OH, USA	—	4	1.39
T5 Data Centers COLUMBUS15 North	T5 Data Centers	Columbus, OH, USA	—	21	1.36
NTT Global Data Centers COLUMBUS16 North	NTT Global Data Centers	Columbus, OH, USA	H100	15	1.21
Cologix COLUMBUS17 Annex	Cologix	Columbus, OH, USA	—	16	1.28
NTT Global Data Centers COLUMBUS18 East	NTT Global Data Centers	Columbus, OH, USA	—	2	1.40
Cologix COLUMBUS19 North	Cologix	Columbus, OH, USA	—	23	1.34
Digital Realty COLUMBUS20 Campus	Digital Realty	Columbus, OH, USA	H100	10	1.52
CoreSite COLUMBUS21 Campus	CoreSite	Columbus, OH, USA	H200	12	1.51
Digital Realty COLUMBUS22 East	Digital Realty	Columbus, OH, USA	MI300X	3	1.38
Novva Data Centers COLUMBUS23 Campus	Novva Data Centers	Columbus, OH, USA	B200	22	1.35
NTT Global Data Centers COLUMBUS24 North	NTT Global Data Centers	Columbus, OH, USA	MI300X	13	1.21
TierPoint COLUMBUS25 Campus	TierPoint	Columbus, OH, USA	—	22	1.37

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry