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
H5 Data Centers CALGARY1 Annex	H5 Data Centers	Calgary, Canada	H100	14	1.25
DataBank CALGARY2 Park	DataBank	Calgary, Canada	L40S	14	1.22
Yondr CALGARY3	Yondr	Calgary, Canada	—	21	1.35
Sabey Data Centers CALGARY4 North	Sabey Data Centers	Calgary, Canada	—	13	1.21
H5 Data Centers CALGARY5 North	H5 Data Centers	Calgary, Canada	—	21	1.39
DataBank CALGARY6 West	DataBank	Calgary, Canada	—	5	1.42
DataBank CALGARY7 Central	DataBank	Calgary, Canada	—	3	1.38
H5 Data Centers CALGARY8 Park	H5 Data Centers	Calgary, Canada	—	21	1.37
H5 Data Centers CALGARY9 Park	H5 Data Centers	Calgary, Canada	—	3	1.40
Yondr CALGARY10	Yondr	Calgary, Canada	—	8	1.46
CoreSite CALGARY11 Campus	CoreSite	Calgary, Canada	H200	20	1.33
Compass Datacenters CALGARY12 North	Compass Datacenters	Calgary, Canada	—	17	1.30
T5 Data Centers CALGARY13 Campus	T5 Data Centers	Calgary, Canada	L40S	6	1.47
Digital Realty CALGARY14 Campus	Digital Realty	Calgary, Canada	—	11	1.23
Novva Data Centers CALGARY15 Annex	Novva Data Centers	Calgary, Canada	A100	4	1.42
Compass Datacenters CALGARY16 West	Compass Datacenters	Calgary, Canada	—	17	1.29
Aligned Data Centers CALGARY17 Annex	Aligned Data Centers	Calgary, Canada	—	7	1.48
Flexential CALGARY18 Campus	Flexential	Calgary, Canada	—	2	1.36

AI Datacenters in

Company → Datacenter → GPU → Customer → Industry