As the AI boom continues and about a month after Microsoft revealed the “world’s most powerful data center,” Oracle has given us the “largest AI supercomputer in the cloud”: OCI Zettascale10.
But it didn’t come out of nowhere: it actually forms the basis of the Stargate supercluster that Oracle is building with OpenAI in Abilene, Texas.
With up to 16 zettaFLOPS of peak performance, Zettascale10 is not a large tower PC: it will connect hundreds of thousands of NVIDIA GPUs across multiple data centers, but will still act as one.
Oracle’s “largest AI supercomputer in the cloud”
OCI has combined Oracle Acceleron RoCE networking architecture with Nvidia’s AI infrastructure to deliver “extremely low” GPU-to-GPU latency.
Zettascale10 clusters will be hosted on large gigawatt data center campuses located within a 2 km radius to reduce latency.
“Customers can build, train and deploy their largest AI models in production using less energy per unit of performance and achieving high reliability,” explained OCI Executive Vice President Mahesh Thiagarajan.
Zettascale10 comes about a year after Oracle launched its first Zettascale cloud computing cluster (at Cloud World 2024), which promised up to 131,072 Nvidia GPUs. This year’s “largest AI supercomputer” increases that number to “up to 800,000 Nvidia GPUs.”
Availability is planned for the second half of 2026, Oracle stated.
In addition to Nvidia chips, Oracle’s Acceleron RoCE network architecture also plays an important role in Zettascale10’s success by maximizing efficiency.
Oracle’s commitment to OpenAI already includes 4.5 gigawatts of additional Stargate capacity, at a cost of more than $300 billion, with new sites also in the works in Texas, New Mexico and the Midwest.
“To meet this enormous demand, we continue to expand OCI’s footprint at an unmatched pace to deliver the most effective and cost-effective AI training and inference,” added Oracle’s new co-CEO Clay Magouyrk.
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