Isambard-AI

Bristol offers Isambard-AI through the UK AI Research Resource to academic and industrial AI users.

Isambard-AI is an operational GPU cluster run by University of Bristol in Bristol, United Kingdom. It has 5,448 NVIDIA GH200 Grace Hopper GPUs installed.

Supercomputer

Verified 11 Nov 2026

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Facts

Source per value

Owner / operator Organization that owns or operates the GPUs. Hosting and facility roles are listed under Partners.: University of Bristol 1
GPU maker NVIDIA, AMD or Intel, taken from the GPU model.: NVIDIA 1
GPU model Accelerator model or family as disclosed. A GH200 is one GPU on a superchip; an MI300A is an APU that contains a GPU.: NVIDIA GH200 Grace Hopper 1
GPUs installed Physical GPUs in the cluster, from the operator or a deterministic sum of disclosed quantities (nodes × GPUs per node). Planned counts, H100-equivalents and unaudited press totals are never counted here.: 5,448 1
Location City, region and country where the cluster sits. Empty when the operator does not name the site.: Bristol, United Kingdom 1
Country Country of the cluster, taken from the location.: United Kingdom 1
Live power MW Power in service, in megawatts of IT load where the source says so. Company figures are marked in the notes; Epoch AI satellite estimates are labelled as estimates.: Not published
Status operational = running and named as such by the operator or a primary source; partly operational = a phase is live and more is coming; under construction = building underway; announced = disclosed or contracted with no confirmed go-live.: operational 1
Operational since Month or year the source gives for the cluster going live (first phase for partly operational clusters). Empty when no date is published.: 2025-07 1
Status notes The source’s wording on status, with the date.: Launched July 2025; access open to academia and industry 1
Figures as of Date of the source disclosure behind the figures, where the source dates it.: 2026-06-05 1
Interconnect Cluster network fabric.: HPE Slingshot 1
Compute nodes nodes Compute nodes in the system or partition.: 1,362 1

Sources

bristol.ac.uk accessed 2026-11-11

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