Prometheus, a 1 GW AI supercluster, online in 2026
“We're actually building several multi-GW clusters. We're calling the first one Prometheus and it's coming online in '26.”
Context: Mark Zuckerberg on Threads (14 Jul 2025), quoted in full by DatacenterDynamics. TechCrunch reported the same day that Prometheus is a 1 GW cluster (New Albany, Ohio).
How we judge it
Our interpretation: correct if during 2026 Meta's Prometheus cluster (New Albany, Ohio) is operating at about 1 GW or more, per Meta or Epoch AI; partly if it comes online in 2026 but well below 1 GW; wrong if it is not online in 2026.
Resolution criteria are our interpretation of the claim, written before grading. Methodology
- Said
- Resolve by
- Due in 81 days
- Verdict
- Pending
- Stated probability
- None stated
- Specificity
- 3 of 3 (precise and measurable)
Evidence & grader’s note
- TechCrunch (Jul 14, 2025): Meta plans to bring a 1 GW super cluster, Prometheus, online in 2026
- Epoch AI: Prometheus operational, est. 471 MW of IT power
- Epoch AI build-time table lists Meta Prometheus reaching 1000 MW on 2026-05-28
Epoch's numbers conflict: its build-time table dates Prometheus to 1 GW of facility power on 28 May 2026, but its directory estimates only 471 MW of IT power. Left open until year-end.
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