“We’re announcing Stargate UK – an AI infrastructure partnership with NVIDIA and Nscale that strengthens the UK’s sovereign compute capabilities. Stargate UK ensures OpenAI’s world-leading AI models can run on local computing power in the UK, for the UK -particularly for specialist use cases where jurisdiction matters.”
That was how OpenAI introduced the project in September 2025.
But that has since changed…
This week, Reuters reported that OpenAI is pausing its main data centre project in Britain, and it’s apparently because of an unfavourable regulatory environment and high energy costs. The decision stalls what had been presented as a flagship moment in the UK’s push to become a global AI hub.
What Was Stargate UK Meant To Deliver?
When OpenAI first announced Stargate UK, it described it as a step forward in the US and UK technology partnership. The company said the project would strengthen Britain’s sovereign compute capabilities, allowing OpenAI’s models to run on local infrastructure for specialist use cases such as critical public services, finance, research and national security.
The plan involved working with NVIDIA and Nscale. OpenAI said it would explore offtake of up to 8,000 GPUs in the first quarter of 2026, with the potential to scale to 31,000 GPUs over time. Nscale was expected to expand its UK capacity, with sites including Cobalt Park in the North East, within a newly designated AI Growth Zone.
Sam Altman, CEO of OpenAI, said at the time, “The UK has been a longstanding pioneer of AI, and is now home to world-class researchers, millions of ChatGPT users, and a government that quickly recognised the potential of this technology.
“Stargate UK builds on this foundation to help accelerate scientific breakthroughs, improve productivity, and drive economic growth. This partnership reflects our shared vision that with the right infrastructure in place, AI can expand opportunity for people and businesses across the UK.”
OpenAI also said it would bring its OpenAI Academy to the UK to support the government’s ambition to upskill 7.5 million workers by 2030.
More from Artificial Intelligence
- Should Governments Have The Power To Switch Off The World’s Most Powerful AI Models?
- Taiwan’s TSMC Profits Set To Surpass 50% Thanks To AI Chip Demand
- Google And Intel Deepen AI Chip Ties, Indicating That AI Isn’t Just About GPUs Anymore
- The ICO Just Weighed In On AI Agents And Data Protection, Here Is What UK Startups Need To Know
- Sam Altman’s Robot Tax Plans: What Does It Actually Mean And Who Would It Affect?
- In The AI Age, Do You Still Need To Spend Money On Expensive Phone Cameras?
- Meet Muse Spark, Meta’s AI That Knows You Better Than You Know Yourself
- Mallory Launches AI-Native Threat Intelligence Platform, Turning Global Threat Data Into Prioritised Action
Why Has OpenAI Paused The Project?
According to Reuters, OpenAI is pausing the UK phase of the project over what it called an unfavourable regulatory environment and high energy costs. The company said it would proceed with the data centre once conditions were in place to support sustained, long term investment.
In a statement reported by Reuters, OpenAI said, “We see huge potential for the UK’s AI future. London is home to our largest international research hub, and we support the Government’s ambition to be an AI leader.”
It added, “We continue to explore Stargate UK and will move forward when the right conditions such as regulation and the cost of energy enable long-term infrastructure investment.”
The original launch of Stargate UK last September coincided with U.S. President Donald Trump’s visit to Britain, which generated £150 billion of inward investment overall, according to Reuters. The data centre project was presented as a “major step” in strengthening the technology partnership between the two countries.
What Does This Mean For The UK Government?
Prime Minister Keir Starmer has placed AI as a main factor in his growth strategy as he seeks to attract international investment and revive the economy. Reuters reported that Starmer pledged a pro innovation approach to regulation last year, along with plans to make public data available to researchers and create zones for data centres.
When asked about OpenAI’s decision, a government spokesperson told Reuters that it was continuing to work with OpenAI and other leading AI companies “to strengthen UK compute capacity”.
The pause really comes at a sensitive time, especially after UK promoted itself as a top 5 market globally for OpenAI paid subscribers and API developers, according to the company’s own announcement. OpenAI said its technology is used by organisations ranging from NatWest and Virgin Atlantic to Synthesia and Oxford University.
The ambition of running OpenAI’s most advanced models on British soil at scale is on hold for now. The company has made clear it is not abandoning the project, though, and that it is waiting for what it sees as the right regulatory framework and energy pricing to justify long term infrastructure investment.
