CLUSTERATLAS
A field guide to supercomputing

Stargate · Abilene

OpenAI / Oracle Cloud Infrastructure

CPU Accelerator Interconnect
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Stargate · Abilene node architecture

Stargate · Abilene is operated by OpenAI / Oracle Cloud Infrastructure in United States. This profile covers Abilene site · partial public profile.

Cluster interconnect: OCI scale-out RDMA fabric; site-specific technology not verified. Topology: Not verified.

GB200 platform · partial site profile

Node count
Not verified
CPU
NVIDIA Grace
CPUs per node
Not verified
Accelerator
NVIDIA Blackwell (GB200)
Physical accelerators per node
Not verified
Host / unified memory
Not verified
Accelerator memory
Not verified
Local accelerator links
NVLink within GB200 NVL72 racks
CPU-to-accelerator link
NVLink-C2C
Storage
Not verified

Scope and uncertainty

Abilene site only, not the entire Stargate initiative. OpenAI confirms OCI and GB200. Oracle documents 72 GPUs per NVL72 rack; a rack is not treated as one compute node. Exact site inventory, per-node configuration and scale-out fabric are not verified.

Not verified means a detail has not been confirmed in this catalog. Diagrams are schematic; node indices are illustrative, not physical hostnames. Data checked 14 September 2026.

Sources

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Data & sources