The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The saved date is an estimated tracking or capacity-trajectory marker, not a verified exact opening day. Construction status follows the cited dated physical scope; no completion is inferred from elapsed targets.
Construction research 2026-10-24: Epoch’s[1] 2026-02-14 observation documents remaining physical construction/installation for this named buildout. In Progress does not complete earlier operating buildings or future capacity. Power and accelerator counts remain Epoch estimates, not an operator-certified rating. Modeled 2025-dollar capital costs include compute hardware and are not a source-native construction budget. Source quote: “All buildings have begun construction” Dated observation 2026-02-14; future trajectory rows and modeled costs are distinguished from this physical milestone.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.
Epoch AI satellite-imagery notes, in date order. · source
Physical-stage observation dated 2026-02-14. Campus buildout remains under construction; already operating buildings do not complete the remaining work. Forecast operational dates retain the directory’s uncertainty and do not establish actual completion.
“All buildings have begun construction”
Epoch’s dated 2026-02-14 assessment: All buildings have begun construction Campus buildout remains under construction; already operating buildings do not complete the remaining work.
“All buildings have begun construction”
Epoch estimates AI hardware: Nvidia H100 chips. Chip fit-out is directory research, not operator-certified inventory.
“We estimate that it uses Nvidia H100 chips.”
Epoch dated observation: Land clearing begins by Peterson Companies for Stack Infrastructure,…
“Land clearing begins by Peterson Companies for Stack Infrastructure, which is noted in the news and visible on satellite imagery.”
Epoch dated observation: All buildings have begun construction (with groundwork starting for AI…
“All buildings have begun construction (with groundwork starting for AI building 6), as depicted by satellite imagery.”
Epoch’s 2026-02-14 observation documents remaining physical construction/installation for this named buildout. In Progress does not complete earlier operating buildings or future capacity. Power and accelerator counts remain Epoch estimates, not an operator-certified rating. Modeled 2025-dollar capital costs include compute hardware and are not a source-native construction budget.
Hyperscale frontier AI training and inference campus tracked by Epoch AI with annotated satellite footprints (11 physical parts).