Largest AI Data Centers (2026)
By @pickwiseThe largest AI data centers, ranked by the power their chips draw today on Epoch AI's estimates from satellite images and permits. Amazon's Project Rainier and SpaceX's Colossus 2 in Memphis already draw about a gigawatt each.
What we track: IT power now · Status · Open to any business · checked October 18
- IT power now:
- The power the site's servers draw today, by Epoch AI's estimate from satellite images and permits; cooling adds about a third.
- Status:
- Running, or still under construction with nothing switched on yet.
- Open to any business:
- Yes when a source says any business can buy capacity there; No when it is built for or taken by one user.
These numbers inform the order but don’t set it: an editor ranks the picks, weighing them against what people who use them say, since stars and downloads also reflect hype and marketing.
Built for a single customer, Anthropic, which AWS says trains and runs Claude on Project Rainier's Trainium2 chips. Epoch AI estimates 910 MW of IT power, reaching 1,037 MW from October 19 as two more buildings come online. The land is the catch: WSBT reports Amazon damaged wetlands without a permit in August 2025 and has asked to pump 35 million gallons of water a day from the site.
- IT power now 910 MW; 1,037 MW from Oct 19, 2026 (Epoch AI estimate)
- Status Running
- Open to any business No
- Operator
- Amazon Web Services (AWS)
- Location
- New Carlisle, Indiana
- Planned IT power
- 1,925 MW by Mar 2028 (Epoch AI)
- Chips
- AWS Trainium2
- Main users
- Anthropic
SpaceX's IPO filing says Grok 5 trains here while Anthropic rents capacity across both Colossus sites, and Epoch AI estimates 946 MW of IT power running, about 1.5 GW by early 2027. Power is the catch: the filing says it came online almost entirely on SpaceX's own generation, and Scientific American reports Mississippi regulators counted 69 temporary gas turbines at its Southaven power site by July 2026.
- IT power now 946 MW (Epoch AI estimate)
- Status Running
- Open to any business Unknown
- Operator
- SpaceXAI (xAI, now part of SpaceX)
- Location
- Memphis, Tennessee; gas power plant in Southaven, Mississippi
- Planned IT power
- 1,531 MW by Feb 2027 (Epoch AI)
- Chips
- Nvidia GB200, GB300
- Main users
- SpaceXAI (Grok 5), Anthropic, Cursor
Microsoft says the site began running in October 2025 with Nvidia GB200 racks on a dedicated fiber network that lets it train one model together with Wisconsin, and Epoch AI estimates 636 MW of IT power since two more buildings came online in June 2026. Water is the catch: Atlanta News First found meters on the QTS campus missed from billing, and QTS was billed $147,000 after a neighbor's low-pressure complaint.
- IT power now 636 MW (Epoch AI estimate)
- Status Running
- Open to any business Unknown
- Operator
- Microsoft, on a campus built by QTS
- Location
- Fayetteville, Georgia
- Planned IT power
- 636 MW, reached June 2026 (Epoch AI)
- Chips
- Nvidia GB200
- Main users
- OpenAI, Microsoft AI, Copilot
Epoch AI estimates 473 MW of IT power running here, and DayOne's October 2026 IPO filing puts this campus at 47.8% of its 962 MW in service. The catch is one tenant: an unnamed short-video company, reported to be ByteDance, paid 69.2% of DayOne's revenue in the first half of 2026, and the filing warns export controls could hit it. DayOne leases whole data halls to large tenants, not GPUs, through info@dayonedc.com.
- IT power now 473 MW (Epoch AI estimate)
- Status Running
- Open to any business Yes
- Operator
- DayOne Data Centers (Singapore)
- Location
- Nusajaya Tech Park, Johor, Malaysia
- Planned IT power
- 473 MW, no further phases listed (Epoch AI)
- Chips
- Nvidia H100, B300 (Epoch AI estimate)
- Main users
- ByteDance (reported)
Meta's first gigawatt AI cluster is spread across regular data center buildings and weatherproof tents in New Albany. Epoch AI estimates 471 MW running as of August 2026, under half of the 1 GW goal. Power is the catch: SynMax drone imagery in August found the northern halls finished but not drawing power, with their on-site gas plant still under construction.
- IT power now 471 MW (Epoch AI estimate)
- Status Running
- Open to any business No
- Operator
- Meta (some buildings leased from QTS and Vantage)
- Location
- New Albany, Ohio
- Planned IT power
- 1,022 MW by Q3 2028 (Epoch AI)
- Chips
- Nvidia B300 (Epoch AI estimate)
- Main users
- Meta
The furthest along of OpenAI's Stargate sites: Epoch AI estimates 421 MW running, rising to 843 MW when the last four buildings come online around November 2026. The catch is its power plant. Floodlight found 10 gas turbines and 62 diesel generators went in on minor permits with no public comment, and the developers now want 41 more turbines.
- IT power now 421 MW (Epoch AI estimate)
- Status Running
- Open to any business No
- Operator
- Oracle, built by Crusoe
- Location
- Abilene, Texas
- Planned IT power
- 843 MW by Nov 2026 (Epoch AI)
- Chips
- Nvidia B200, B300 (Epoch AI estimate)
- Main users
- OpenAI
Epoch AI projects growth from 369 MW of IT power today to 2,263 MW by mid-2028, as nine more buildings rise on former Foxconn land. Racine County Eye notes that Microsoft's claim of the world's most powerful supercomputer has not been independently verified, and We Energies plans new gas plants as Microsoft and Vantage drive 3.9 GW of new demand, Wisconsin Public Radio reports.
- IT power now 369 MW (Epoch AI estimate)
- Status Running
- Open to any business Unknown
- Operator
- Microsoft
- Location
- Mount Pleasant, Wisconsin
- Planned IT power
- 2,263 MW by May 2028 (Epoch AI)
- Chips
- Nvidia GB200
- Main users
- OpenAI, Microsoft AI, Copilot
Epoch AI counts 368 MW running at Pryor since a second building, converted from a warehouse, came online in September 2026, and Google Cloud has rented TPU v4 chips here to outside users since 2022. The catch is water and coal: Oklahoma Watch reports 1,081 million gallons consumed in 2025, with power from a utility plant that burns coal and gas.
- IT power now 368 MW (Epoch AI estimate)
- Status Running
- Open to any business Yes
- Operator
- Location
- Pryor, Mayes County, Oklahoma
- Planned IT power
- 368 MW, no further phases listed (Epoch AI)
- Chips
- Google TPU v5p, v5e (Epoch AI estimate)
- Main users
- Google; Google DeepMind is speculative (Epoch AI)
Anthropic now rents all of it: its May 2026 deal with SpaceX covers more than 300 MW and over 220,000 Nvidia GPUs, and Epoch AI estimates 340 MW of IT power with no growth planned. The site started on gas turbines. Scientific American reports flyovers found 35 running while xAI sought a permit for 15, and a promised recycled-water plant was paused partly built.
- IT power now 340 MW (Epoch AI estimate)
- Status Running
- Open to any business No
- Operator
- SpaceXAI (xAI, now part of SpaceX)
- Location
- Memphis, Tennessee
- Planned IT power
- 340 MW, no growth projected (Epoch AI)
- Chips
- Nvidia H100, H200, B200
- Main users
- Anthropic (all capacity since May 2026)
Core Scientific turned a bitcoin mine into what Epoch AI estimates is 262 MW of running AI capacity, and CoreWeave plans to lease it to OpenAI, The Wall Street Journal reported. The catch: it is spoken for, and weather and contractor delays already pushed back OpenAI's start dates. Businesses that want CoreWeave GPUs go through its sales team at coreweave.com, not this site.
- IT power now 262 MW (Epoch AI estimate)
- Status Running
- Open to any business No
- Operator
- CoreWeave, on a campus Core Scientific owns and built
- Location
- Denton, Texas
- Planned IT power
- 282 MW by May 2027 (Epoch AI)
- Chips
- Nvidia Grace Blackwell, 50,000+ GPUs (Core Scientific, Mar 2026)
- Main users
- OpenAI
Huawei Cloud opened this Inner Mongolia campus in July 2025 as its first northern site for CloudMatrix384 Ascend clusters, rented to Chinese firms, and Epoch AI estimates 184 MW now, rising to 346 MW by 2028. The catch for anyone abroad: US guidance since May 2025 treats using Ascend chips anywhere as an export-control breach, and SemiAnalysis found CloudMatrix draws 4.1x the power of Nvidia's rival rack.
- IT power now 184 MW (Epoch AI estimate)
- Status Running
- Open to any business Yes
- Operator
- Huawei Cloud
- Location
- Horinger, Hohhot, Inner Mongolia, China
- Planned IT power
- 346 MW by Feb 2028 (Epoch AI)
- Chips
- Huawei Ascend 910C (Epoch AI estimate)
- Main users
- Huawei Cloud customers in China
Epoch AI projects 1,750 MW of IT power at Project Jupiter near Santa Teresa by the end of 2028, one of the largest Stargate builds. Power is the catch: the 2.45 GW Bloom fuel-cell microgrid still awaits a state air permit, its gas pipeline slipped to February 2027, and Oracle sent the developer a force majeure notice in September, ENR reports.
- IT power now 0 MW, under construction (Epoch AI)
- Status Under construction
- Open to any business Unknown
- Operator
- Oracle, developed by STACK and BorderPlex
- Location
- Santa Teresa, Doña Ana County, New Mexico
- Planned IT power
- 1,750 MW by end of 2028 (Epoch AI)
- Main users
- OpenAI
Meta says its Richland Parish campus will grow to 5 GW of compute, the largest in its fleet, for more than $50 billion. Epoch AI expects nothing running until a first phase around January 2028. The catch is power: Entergy wants seven more gas plants worth over $16 billion on a fast-tracked review, and advocates told WWNO the deal's terms are hard to see.
- IT power now 0 MW, under construction (Epoch AI)
- Status Under construction
- Open to any business No
- Operator
- Meta, built by DPR, Turner and Mortenson
- Location
- Holly Ridge, Richland Parish, Louisiana
- Planned IT power
- 1,632 MW by Jan 2028 (Epoch AI)
- Chips
- Nvidia Rubin (Epoch AI estimate)
- Main users
- Meta
Vantage's 1.4 GW Frontier campus, about 20 km from the first Abilene site, is being built for Oracle to run OpenAI's work. Epoch AI expects the first building to run around August 2027, later than Vantage's second-half-2026 delivery target. Power is the catch: it relies on an on-site gas microgrid, and Bloomberg reported Oracle trucked in gas for early work.
- IT power now 0 MW, under construction (Epoch AI)
- Status Under construction
- Open to any business Unknown
- Operator
- Oracle, built by Vantage Data Centers
- Location
- Shackelford County, Texas
- Planned IT power
- 1,400 MW by Nov 2028 (Epoch AI)
- Chips
- Nvidia Rubin (Epoch AI estimate)
- Main users
- OpenAI
Epoch AI counts no running power here yet but projects 200 MW by December 2026 and 1 GW by 2028, which would make it OpenAI's first Stargate cluster outside the US. Mubadala's chief told The National the first 200 MW would be ready in the third quarter of 2026. The catch is risk: Iran's Revolutionary Guard named the campus a possible target in April 2026, and US lawmakers are questioning the chip export approvals behind it.
- IT power now 0 MW, under construction (Epoch AI estimate)
- Status Under construction
- Open to any business Unknown
- Operator
- Built by G42, operated by OpenAI and Oracle
- Location
- Abu Dhabi, United Arab Emirates
- Planned IT power
- 1,000 MW by Jan 2028 (Epoch AI); first 200 MW due 2026 (G42)
- Chips
- Nvidia GB300 (planned)
- Main users
- OpenAI
How to choose
To rent compute, few of these sites are open to any business. Google Cloud sells TPU time from Pryor, Huawei Cloud rents Ascend clusters from Horinger to firms in China, and DayOne leases whole data halls in Johor. The rest are built for one lab or for the owner: OpenAI, Anthropic, Meta or SpaceXAI. Each pick names the operator, the builder and the main users, which is who to approach to sell power, land, equipment or services.
AI data centers go by several names: GPU data centers, AI campuses, hyperscale AI sites and, in Microsoft's word, AI superfactories. For an AI data center map, Epoch AI plots every site it tracks. Older "largest data centers in the world" lists rank by floor area, which puts China Telecom's Hohhot park on top; for AI, power is the better measure, since chips and cooling grow with it.
What the operators' pages leave out is power and water. Colossus and Abilene run their own gas turbines, on permits that covered fewer turbines than were running or skipped public comment, and Hyperion waits on seven new Entergy gas plants. Planned dates slip: Epoch AI expects several sites to open later than their operators say, and Microsoft's "most powerful" claim for Wisconsin has not been checked by anyone else.
IT power is what the servers draw; the whole site uses about 1.3 times that once cooling is counted (Epoch AI). Ordered by IT power running today, by Epoch AI's estimate, then sites still under construction by the power planned for them.
Numbers checked October 18, 2026.