Microsoft completes top-five Azure supercomputer for OpenAI
Microsoft announced a completed Azure supercomputer built with and exclusively for OpenAI, containing more than 285,000 CPU cores, 10,000 GPUs, and 400-gigabit-per-second connectivity per GPU server. Microsoft described it as one of the five largest publicly disclosed systems and a platform for training very large general-purpose AI models.
TOWARD DOOM31confidence 90/100
Why it moved the index
A completed, dedicated frontier-training system materially increased OpenAI's scaling capacity and deepened the Microsoft-OpenAI competitive alliance. No exact model was disclosed in the dated source, so no model relationship is inferred.
AUDIT TRAIL
Assessment history
- R1Toward 31 · confidence 90
New source-verified historical frontier-compute event absent from the durable corpus.
11 Aug 2026