The Definitive Guide toAI Data Centers
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Large multi-rack GPU program, agreement to commissioned capacity — observed 2025–26 programs run ~6–12 mo: IREN–Dell $1.6B air-cooled Blackwell (signed 2026-05-26, commissioning early 2027, ~7–10 mo); Crusoe MI355X ~3–6 mo; Nebius–Meta capacity ~9–12 mo

~6–12 moobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
Scopemulti-rack programs on existing powered sites
CaveatProgram duration includes site work, integration and commissioning — not the per-rack hardware clock; priority customers sit at the fast end.
As of2026-07
SourceSEC 8-K / press: IREN–Dell purchase agreement (2026-05-26), commissioning target early 2027; Crusoe MI355X announcement-to-service (2025-06-12); Nebius–Meta agreement (2026-03-16), capacity early 2027
Reviewchecking…review by 2026-09-18 · fast cadence
Recorded changesnone recorded
Claim idlarge-gpu-program-order-to-online

Where the guide uses it

Not quoted in a chapter yet; it is kept in the curated register.

← Full numbers register — every date-stamped figure in the guide, with revision history.