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
Azure South Central US	Microsoft Azure	San Antonio, TX, USA	H100/B200/GB200	500	1.18
Equinix SAN1 West	Equinix	San Antonio, TX, USA	—	12	1.52
Switch SAN2 Annex	Switch	San Antonio, TX, USA	—	20	1.30
STACK Infrastructure SAN3 Park	STACK Infrastructure	San Antonio, TX, USA	—	13	1.22
eStruxture SAN4 East	eStruxture	San Antonio, TX, USA	—	10	1.54
Equinix SAN5 East	Equinix	San Antonio, TX, USA	B200	3	1.37
Equinix SAN6	Equinix	San Antonio, TX, USA	—	13	1.22
eStruxture SAN7 West	eStruxture	San Antonio, TX, USA	B200	16	1.24
Iron Mountain SAN8 Campus	Iron Mountain	San Antonio, TX, USA	—	6	1.46
Switch SAN9 Park	Switch	San Antonio, TX, USA	—	19	1.33
Equinix SAN10 Campus	Equinix	San Antonio, TX, USA	—	16	1.28
EdgeConneX SAN11 Park	EdgeConneX	San Antonio, TX, USA	—	22	1.33
Cologix SAN12 East	Cologix	San Antonio, TX, USA	A100	6	1.43
Flexential SAN13 Campus	Flexential	San Antonio, TX, USA	H200	17	1.29
Novva Data Centers SAN14 West	Novva Data Centers	San Antonio, TX, USA	—	15	1.22
QTS Data Centers SAN15 Annex	QTS Data Centers	San Antonio, TX, USA	—	4	1.41
Cologix SAN16 Central	Cologix	San Antonio, TX, USA	—	8	1.43
NTT Global Data Centers SAN17 North	NTT Global Data Centers	San Antonio, TX, USA	MI300X	12	1.54
Novva Data Centers SAN18 Annex	Novva Data Centers	San Antonio, TX, USA	MI300X	6	1.44
QTS Data Centers SAN19 South	QTS Data Centers	San Antonio, TX, USA	H200	10	1.51
Cologix SAN20	Cologix	San Antonio, TX, USA	—	18	1.27
Novva Data Centers SAN21 Campus	Novva Data Centers	San Antonio, TX, USA	L40S	6	1.46

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry