What is an AI datacenter?

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.

Which datacenter has the most GPUs?

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.

What is the largest AI cluster?

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.

Which GPU cloud is cheapest for H100?

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.

How is Datacenter.computer different from a datacenter directory?

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes capacity, power, fabric and location across 833 sourced facilities and 40 operators into a single queryable graph for AI agents, traders and procurement teams.

[D0] Discovery · Directory

Data centre directory · 833 sourced facilities

Every individually sourced facility record in the index, searchable and filterable. All filters and pages are plain links, so the full dataset is crawlable without JavaScript.

[AI Summary]

Datacenter.computer indexes 833 individually sourced data-centre facilities across 53 countries, 290 metros and 40 operators, with 4,536.77 MW of recorded capacity. Each record carries an operational status, capacity basis, verification status and confidence level; unknown fields are published as "Not publicly disclosed" rather than estimated. Modelled metro-level market signals are held in a separate research layer and never appear here as facilities.

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[Results · 1–20 of 20]

Sourced data-centre facilities matching the current filters
Facility	Operator	Metro	Type	Status	Recorded MW	Confidence
STACK Northern Virginia	STACK Infrastructure	Ashburn, VA, USA	Colocation	Operational	Not publicly disclosed	High
STACK Silicon Valley	STACK Infrastructure	Santa Clara, CA, USA	Colocation	Operational	Not publicly disclosed	High
STACK Chicago	STACK Infrastructure	Chicago, IL, USA	Colocation	Operational	Not publicly disclosed	High
STACK Dallas	STACK Infrastructure	Dallas, TX, USA	Colocation	Operational	Not publicly disclosed	High
STACK Phoenix	STACK Infrastructure	Phoenix, AZ, USA	Colocation	Operational	Not publicly disclosed	High
STACK Atlanta	STACK Infrastructure	Atlanta, GA, USA	Colocation	Operational	Not publicly disclosed	High
STACK New Albany	STACK Infrastructure	New Albany, OH, USA	Colocation	Operational	Not publicly disclosed	High
STACK Portland	STACK Infrastructure	Portland, OR, USA	Colocation	Operational	Not publicly disclosed	High
STACK Toronto	STACK Infrastructure	Toronto, ON, Canada	Colocation	Operational	Not publicly disclosed	High
STACK London	STACK Infrastructure	London, UK, United Kingdom	Colocation	Operational	Not publicly disclosed	High
STACK Manchester	STACK Infrastructure	Manchester, UK, United Kingdom	Colocation	Operational	Not publicly disclosed	High
STACK Frankfurt	STACK Infrastructure	Frankfurt, Germany	Colocation	Operational	Not publicly disclosed	High
STACK Amsterdam	STACK Infrastructure	Amsterdam, Netherlands	Colocation	Operational	Not publicly disclosed	High
STACK Paris	STACK Infrastructure	Paris, France	Colocation	Operational	Not publicly disclosed	High
STACK Copenhagen	STACK Infrastructure	Copenhagen, Denmark	Colocation	Operational	Not publicly disclosed	High
STACK Helsinki	STACK Infrastructure	Helsinki, Finland	Colocation	Operational	Not publicly disclosed	High
STACK Tokyo	STACK Infrastructure	Tokyo, Japan	Colocation	Operational	Not publicly disclosed	High
STACK Sydney	STACK Infrastructure	Sydney, Australia	Colocation	Operational	Not publicly disclosed	High
STACK Singapore	STACK Infrastructure	Singapore, Singapore	Colocation	Operational	Not publicly disclosed	High
STACK Mumbai	STACK Infrastructure	Mumbai, India	Colocation	Operational	Not publicly disclosed	High

Counts are computed live from the sourced facility index. Fields without a public basis show “Not publicly disclosed”. See the methodology, the data dictionary and the public API.

[Knowledge Graph]

Company → Datacenter → GPU → Customer → Industry

Every entity on this site is cross-linked. Follow the graph from operators down to specific facilities, GPU clusters, customers, and sectoral context.

Data centre directory · 833 sourced facilities

[Browse by country · 53]

Company → Datacenter → GPU → Customer → Industry