OpenAI pauses Stargate in the UK, citing the high energy costs and regulatory environment; OpenAI announced it in September 2025 alongside Nvidia and Nscale (Mark Bergen/Bloomberg)

Why it matters: OpenAI's Stargate project, planned with Nvidia and Nscale, is paused in the UK due to energy costs and regulations.
- OpenAI pauses its Stargate artificial intelligence infrastructure project in the UK.
- OpenAI initially announced the Stargate project in September 2025 alongside Nvidia and Nscale.
- High energy costs and the regulatory environment in the UK are cited as the primary reasons for the project's suspension.
OpenAI has halted its ambitious Stargate AI infrastructure project in the UK, a joint venture announced in September 2025 with Nvidia and Nscale, citing prohibitive energy costs and a challenging regulatory landscape. This pause reflects a strategic reassessment of large-scale AI development in specific regions.




