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
AWS eu-north-1	AWS	Stockholm, Sweden	H100	220	1.10
CoreWeave Sweden	CoreWeave	Stockholm, Sweden	H200	40	1.10
BAHNHOF Pionen	Bahnhof	Stockholm, Sweden	Mixed	12	1.10
Global Switch STOCKHOLM1 Campus	Global Switch	Stockholm, Sweden	MI300X	23	1.38
Penta Infra STOCKHOLM2 Park	Penta Infra	Stockholm, Sweden	—	2	1.41
Aruba STOCKHOLM3 Campus	Aruba	Stockholm, Sweden	B200	24	1.37
Hetzner STOCKHOLM4 Central	Hetzner	Stockholm, Sweden	—	14	1.54
STACK EMEA STOCKHOLM5 Campus	STACK EMEA	Stockholm, Sweden	—	9	1.28
NTT STOCKHOLM6 Annex	NTT	Stockholm, Sweden	—	21	1.32
Digital Realty / Interxion STOCKHOLM7 Park	Digital Realty / Interxion	Stockholm, Sweden	MI300X	10	1.51
Telefonica STOCKHOLM8	Telefonica	Stockholm, Sweden	MI300X	13	1.40
Global Switch STOCKHOLM9 South	Global Switch	Stockholm, Sweden	—	9	1.51
Bulk Infrastructure STOCKHOLM10 East	Bulk Infrastructure	Stockholm, Sweden	L40S	3	1.40
NTT STOCKHOLM11 South	NTT	Stockholm, Sweden	MI300X	2	1.39
Aruba STOCKHOLM12 East	Aruba	Stockholm, Sweden	—	21	1.33
NTT STOCKHOLM13	NTT	Stockholm, Sweden	—	17	1.23
Digital Realty / Interxion STOCKHOLM14 Park	Digital Realty / Interxion	Stockholm, Sweden	B200	9	1.50
Bulk Infrastructure STOCKHOLM15 West	Bulk Infrastructure	Stockholm, Sweden	L40S	14	1.20
Digital Realty / Interxion STOCKHOLM16	Digital Realty / Interxion	Stockholm, Sweden	—	25	1.35
NTT STOCKHOLM17 Park	NTT	Stockholm, Sweden	—	19	1.26
Aruba STOCKHOLM18	Aruba	Stockholm, Sweden	—	17	1.32
NTT STOCKHOLM19 Annex	NTT	Stockholm, Sweden	—	17	1.27
Green Mountain STOCKHOLM20 East	Green Mountain	Stockholm, Sweden	—	4	1.38
Iron Mountain STOCKHOLM21 North	Iron Mountain	Stockholm, Sweden	—	4	1.39
Nscale STOCKHOLM22 Central	Nscale	Stockholm, Sweden	H100	5	1.40
Equinix STOCKHOLM23 Central	Equinix	Stockholm, Sweden	—	8	1.48
EdgeConneX STOCKHOLM24 Park	EdgeConneX	Stockholm, Sweden	H200	17	1.26
Nscale STOCKHOLM25 West	Nscale	Stockholm, Sweden	—	10	1.50
Colt DCS STOCKHOLM26 Central	Colt DCS	Stockholm, Sweden	—	7	1.44
EdgeConneX STOCKHOLM27 Campus	EdgeConneX	Stockholm, Sweden	—	18	1.26
IONOS STOCKHOLM28 South	IONOS	Stockholm, Sweden	H200	5	1.43

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry