OpenAI's Ohio 10GW project can't be read in isolation — if it lands, its natural home is inside the Stargate map as a massive piece of U.S. AI infrastructure. But as of July 27, 2026, Stargate is the officially announced platform, while Ohio 10GW and NVIDIA guarantees still come mainly from press reports. This guide layers official progress against potential expansion so you can tell them apart.
1What Is Stargate — and How Does It Relate to the 10GW Project?
Stargate is not a single data center. It is OpenAI's umbrella U.S. AI infrastructure platform — coordinating site selection, financing, power, compute deployment, and partner roles. Initial equity backers include SoftBank, OpenAI, Oracle, and MGX; technology partners include Arm, Microsoft, NVIDIA, Oracle, and OpenAI itself.
If the Ohio 10GW project eventually goes live, it would logically sit inside Stargate's expansion story as a potential mega-node — not a replacement for already announced milestones like the Texas launch site, Oracle's 4.5GW deal, or the five new sites. Until OpenAI or the project owners confirm it, don't treat Ohio as an official Stargate site.
2The Official Map: Confirmed Stargate Nodes
Using OpenAI's public timeline, you can separate announced capacity from press-reported figures:
| Milestone | Date | Capacity / Detail | Status |
|---|---|---|---|
| Texas launch | Early 2025 | First Stargate site | Official |
| Oracle partnership | Jul 2025 | +4.5GW added | Official |
| Five new sites | Sep 2025 | ~7GW combined plan | Official |
| SB Energy lease | Jan 2026 | 1.2GW | Official |
| Ohio Portsmouth | Press reports | Up to 10GW | Awaiting confirmation |
💡 Reading the map: Stargate is a multi-site, multi-partner platform — not "just Ohio." Official disclosures are measured in single-digit GW; 10GW is a different order of magnitude and still sits in the potential column.
official added capacity
official combined scale
potential ceiling
3SB Energy: The Power & Campus Development Node
In January 2026, OpenAI and SB Energy (SoftBank's energy platform) disclosed a 1.2GW data center lease — Stargate's first official node centered on energy and campus development. SB Energy's role is power supply, land, and site build-out, providing the sustainable energy base for compute clusters.
SB Energy has multi-GW campus development capability, which is why Ohio 10GW stories often tie back to the SoftBank ecosystem. But the 1.2GW lease is confirmed; 10GW still needs its own verification.
4Ohio 10GW: Potential Expansion, Not an Announced Site
A U.S. Department of Energy (DOE) special report on the Portsmouth Site describes it as a candidate location for hyperscale AI data centers. Multiple outlets report OpenAI is negotiating a long-term lease there at up to 10GW; NVIDIA may supply GPUs or financing guarantees — but as of this writing, neither OpenAI nor NVIDIA has issued a formal announcement.
⚠️ Fact boundary: A DOE report describes site potential — not a signed OpenAI deal. Press coverage of negotiations is not an updated Stargate site list. Treat Ohio 10GW as a potential node closely linked to SB Energy and the energy map, pending official confirmation.
5NVIDIA & SoftBank: What Each Player Does
Layering Stargate participants by function makes the news easier to parse:
- SoftBank — Financial and organizational hub: Stargate equity backer, with SB Energy supplying power and campus resources.
- OpenAI — Operator and demand driver: sets compute scale, training and inference needs, and Stargate's strategic direction.
- Oracle — Cloud capacity and infrastructure: delivers large-scale cloud-side deployment, including the 4.5GW commitment.
- NVIDIA — Technology partner: GPU supply and system reference designs; its role as Ohio "guarantor" remains unconfirmed.
6How to Tell When 10GW Officially Joins Stargate
If Ohio moves from "potential" to "announced," watch for these signals:
OpenAI announcement or Stargate page update
Portsmouth, capacity figures, or a new site entry on openai.com is the clearest signal.
SB Energy / SoftBank joint lease or campus agreement
Energy-side filings naming a GW-scale long-term lease can cross-check site and scale.
NVIDIA or Oracle independent GPU / cloud capacity commitment
Tech partner announcements can confirm compute delivery — but should align with OpenAI's site narrative.
Regulatory or financing filings
Large data centers often surface in environmental reviews, grid interconnection, or bond prospectuses as secondary evidence.
As of July 27, 2026, Stargate is OpenAI's U.S. AI infrastructure platform: Texas launch, Oracle 4.5GW, a five-site ~7GW plan, and SB Energy's 1.2GW lease are all official. Ohio 10GW and NVIDIA guarantees remain press-level potential expansion — worth tracking on the map, not a substitute for announced nodes. Follow OpenAI announcements, the Stargate site list, and lease or financing documents to know when it becomes official.
- 1Treat Stargate as a multi-site platform, not a single Ohio project
- 2Layer official capacity (~7GW class) against reported capacity (10GW)
- 3Verify 10GW landing with announcements, site lists, leases, and filings
7Track AI Infrastructure News on Your Own Machine
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