Companies · 3 datasets

OpenAI

a user of 21 AI campuses, 17 frontier models.

AI campuses21 campuses
AI supercomputers, to Jul 20253 clusters
Frontier models17 models

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OpenAI, one figure a dataset

<iframe src="https://jesseahawkins.com/companies/embed/openai/" title="OpenAI: what the AI buildout data says" width="100%" height="420" style="border:0;max-width:100%" loading="lazy"></iframe>

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Cite

This page

Jesse Hawkins, “OpenAI: what the AI buildout data says”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/companies/openai/. Data: 18 companies joined across 8 datasets the site already publishes: Epoch AI’s data centers and GPU clusters, company filings, cloud region lists, nuclear agreements, LMArena and Wikipedia’s list of chip plants.

BibTeX

@misc{hawkins2026companiesopenai,
  author = {Hawkins, Jesse},
  title = {{OpenAI: what the AI buildout data says}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/companies/openai/}},
  note = {Data: 18 companies joined across 8 datasets the site already publishes: Epoch AI’s data centers and GPU clusters, company filings, cloud region lists, nuclear agreements, LMArena and Wikipedia’s list of chip plants, retrieved 2026-10-30}
}

The data centers · Epoch AI

Epoch AI, ‘AI data centers’, https://epoch.ai/data/ai-data-centers, retrieved 22 Oct 2026. CC BY 4.0.

The clusters · Epoch AI

Epoch AI, ‘Data on GPU clusters’, https://epoch.ai/data/gpu-clusters, retrieved 16 Oct 2026. CC BY 4.0.

The chip plants · Wikipedia

Wikipedia contributors, ‘List of semiconductor fabrication plants’, https://en.wikipedia.org/w/index.php?title=List_of_semiconductor_fabrication_plants&oldid=1379416921. CC BY-SA 4.0.

CSV Post on X

OpenAI uses 21 AI campuses it does not own

The Buildout →

Campus	Role	Power now	H100e now	Planned peak	First power
Microsoft Fairwater AtlantaFayetteville, Georgia, United States	user	859 MW	769K	859 MWJun 2026	Oct 2025
OpenAI Stargate AbileneAbilene, Texas, United States	user	590 MW	509K	1.2 GWNov 2026	Sep 2025
Microsoft Fairwater WisconsinMount Pleasant, Wisconsin, United States	user	442 MW	446K	2.7 GWMay 2028	Apr 2026
CoreWeave Denton TXDenton, Texas, United States	user	367 MW	253K	395 MWMay 2027	May 2025
Microsoft GoodyearGoodyear, Arizona, United States	user	263 MW	205K	263 MWSep 2025	Apr 2023
Microsoft Project OsmiumCumming, Iowa, United States	user	228 MW	156K	228 MWMar 2025	Jan 2021
Coreweave HeliosAfton, Texas, United States	user	200 MW	160K	800 MWJan 2029	Aug 2026
CoreWeave Chester VAChester, Virginia, United States	user	114 MW	88K	197 MWJun 2027	Jan 2024
CoreWeave Marble NCMarble, North Carolina, United States	user	91 MW	79K	91 MWMay 2026	Mar 2026
CoreWeave Ellendale NDEllendale, North Dakota, United States	user	88 MW	93K	520 MWJun 2027	Oct 2025
CoreWeave NorwayØvrebø, Agder, Norway	user	55 MW	51K	55 MWJul 2025	Jul 2025
CoreWeave Dalton 1 & 2Dalton, Georgia, United States	user	40 MW	32K	40 MWFeb 2026	Feb 2026
OpenAI Stargate New MexicoSanta Teresa, New Mexico, United States	user	—	—	2.5 GWDec 2028	Dec 2028
OpenAI Stargate ShackelfordAbilene, Texas, United States	user	—	—	2.0 GWNov 2028	Aug 2027
OpenAI Stargate UAEAbu Dhabi, Abu Dhabi, United Arab Emirates	user	—	—	1.4 GWJan 2028	Dec 2026
OpenAI Stargate MichiganBenton, Michigan, United States	user	—	—	1.4 GWDec 2028	Dec 2028
OpenAI Stargate WisconsinPort Washington, Wisconsin, United States	user	—	—	1.3 GWDec 2028	Dec 2028
OpenAI Stargate MilamBurlington, Texas, United States	user	—	—	1.2 GWDec 2028	Dec 2028
OpenAI Stargate LordstownLordstown, Ohio, United States	user	—	—	300 MWMar 2027	Mar 2027
CoreWeave Muskogee OKMuskogee, Oklahoma, United States	user	—	—	181 MWDec 2027	Dec 2026
CoreWeave Lancaster Greenfield siteLancaster, Pennsylvania, United States	user	—	—	124 MWJun 2027	Jun 2027

Owner and users as Epoch AI names them. The totals above count the campuses OpenAI owns, not those it uses.

3 AI supercomputers in Epoch AI’s list to Jul 2025, 108,515 H100-equivalents operating then

Every listed supercomputer →

Cluster	Country	H100e	Status	From
OpenAI/Microsoft Goodyear Arizonaowners: Microsoft, OpenAI	United States	100,000	existing (likely)	Oct 2024
Microsoft GPT-4 clusterowners: Microsoft, OpenAI	United States	7,883	existing (likely)	Apr 2022
Azure OpenAI GPT-3 Clusterowners: Microsoft, OpenAI	United States	632	existing (likely)	Apr 2020

Epoch AI stopped this list in Jul 2025; the H100-equivalents now at each campus are in the campus table above, and on the Machine’s compute layer.

17 models that led or matched the top of an LMArena board

Frontier →

gpt-4o-2024-05-13 first seen May 2024 227 days in first place
gpt-image-2 (medium) first seen Apr 2026 140 days in first place
chatgpt-4o-latest-20250326 first seen Mar 2025 118 days in first place
o1-preview first seen Sep 2024 104 days in first place
gpt-image-1.5-high-fidelity first seen Dec 2025 71 days in first place
gpt-image-1 first seen Jun 2025 62 days in first place
o3-2025-04-16 first seen Apr 2025 62 days in first place
gpt-4-0314 first seen Dec 2023 58 days in first place
gpt-image-2.5-sunburst first seen Sep 2026 48 days in first place
gpt-4-1106-preview first seen Feb 2024 40 days in first place
gpt-4-turbo-2024-04-09 first seen Apr 2024 34 days in first place
o1-2024-12-17 first seen Dec 2024 34 days in first place
chatgpt-4o-latest first seen Aug 2024 24 days in first place
gpt-6-astra-max first seen Sep 2026 18 days in first place
gpt-4-0125-preview first seen Feb 2024 13 days in first place
gpt-4.5-preview-2025-02-27 first seen Mar 2025 6 days in first place
gpt-5.6-sol-xhigh (codex-harness) first seen Jul 2026 4 days in first place

Days in first place, summed across LMArena's boards.

Sources

Follow this company → Every dataset → Status → Glossary →

Epoch AI, CC BY 4.0.
Epoch AI, CC BY 4.0.
LMArena, CC BY 4.0.
The names joined for OpenAI: openai. The join is this site's own.