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Latest / Chips, compute and energy

LaunchComputeScienceGovernmentUKConfirmed

Isambard-AI opens in Bristol as the UK’s most powerful AI supercomputer

See how this story connects

Source: NVIDIAAlso reported by TechRepublic, University of Bristol

Isambard-AI, built at the University of Bristol with £225 million of UK government money, was unveiled at a ribbon-cutting on 17 July 2025 as what the government called the UK’s most powerful AI supercomputer, with the full system live since June. It has 5,448 NVIDIA GH200 Grace Hopper Superchips and about 21 exaflops of AI performance, and ranked 11th on the June 2025 TOP500 list and fourth on the Green500 for energy efficiency. With Cambridge’s Dawn it forms the AI Research Resource for UK researchers.

Why it matters

UK academic and public-sector researchers gained national access to about 21 exaflops of GPU compute for training and running AI models, run by a UK university.

When
17 Jul 2025
ID
WTA-N-2025-0083
Who
University of Bristol, NVIDIA, HPE, Department for Science, Innovation and Technology
Rules involved

Summary by wheresthe.ai, from NVIDIA and the reporting credited above. Checked against the source on 9 Oct 2026.

Read the original at NVIDIA

Source copy: download the page text as saved on 18 Oct 2026 (PDF). Also held by the Internet Archive.

Next stop on this Storyline: What happened nextUK says 38 of 50 AI Opportunities Action Plan commitments met; Lanarkshire named AI Growth Zone days later

Cite this story

WTA-N-2025-0083: “Isambard-AI opens in Bristol as the UK’s most powerful AI supercomputer.” wheresthe.ai, 17 Jul 2025. https://wheresthe.ai/d/gb-isambard-ai-launch-2025-07/ (source: NVIDIA).

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