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
CoreWeave NJ01	CoreWeave	Weehawken, NJ, USA	H100/H200	28	1.18
CoreWeave VA02	CoreWeave	Ashburn, VA, USA	H200/B200	60	1.15
Lambda TX1	Lambda	Allen, TX, USA	H200	24	1.21
xAI Colossus	xAI	Memphis, TN, USA	H100/H200 · 200K	250	1.18
Nebius Mäntsälä	Nebius	Mäntsälä, Finland	H100/H200	60	1.13
Nebius Paris	Nebius	Paris, France	H200	28	1.18
G42 Cloud AUH	G42 Cloud	Abu Dhabi, UAE	H100/H200 · Condor Galaxy	150	1.27
OCI Ashburn	Oracle Cloud	Ashburn, VA, USA	H100/H200	150	1.18
CoreWeave Plano	CoreWeave	Plano, TX, USA	H200	30	1.19
CoreWeave Atlanta	CoreWeave	Douglasville, GA, USA	H200/B200	100	1.16
Lambda Phoenix	Lambda	Phoenix, AZ, USA	H200	18	1.23
Applied Digital Ellendale	Applied Digital	Ellendale, ND, USA	H100/H200	400	1.15
OCI London	Oracle Cloud	Slough, United Kingdom	H100/H200	70	1.22
Nebius Iceland	Nebius	Reykjanesbær, Iceland	H200	40	1.08
Nebius Kansas City UK	Nebius	Manchester, United Kingdom	H200	30	1.18
JUPITER (FZJ)	EuroHPC	Jülich, Germany	GH200 · 24K	18	1.15
CoreWeave London	CoreWeave	Crawley, United Kingdom	H200/B200	50	1.18
CoreWeave Sweden	CoreWeave	Stockholm, Sweden	H200	40	1.10
Naver Cloud Sejong	Naver Cloud	Sejong, South Korea	H100/H200	270	1.18
CoreWeave Querétaro	CoreWeave	Querétaro, Mexico	H200	24	1.28

Which datacenters have NVIDIA H200 GPUs?

Company → Datacenter → GPU → Customer → Industry