OpenAI announced on April 13, 2026, that it is opening its first permanent office in London, marking a significant expansion of its presence in the UK. The new office will have a capacity for over 500 team members, more than doubling OpenAI's current headcount in London, which stands at around 200 employees [1]. The company has signed a lease for an 88,500 square foot space, underscoring its commitment to making London its largest research hub outside of the United States, a plan first revealed in February [1].
This move comes after OpenAI halted a major AI infrastructure project in the UK, known as the Stargate project [1]. Despite this, the company is reaffirming its investment in the region, citing the UK's depth of talent and strong track record in artificial intelligence. Phoebe Thacker, OpenAI's London site lead, stated, "London is already a key hub for our research and teams, and this new office gives us the space to keep building here" [1].
While the announcement does not mention specific market reactions or analyst opinions, the expansion signals OpenAI's intention to grow its research and development capabilities in Europe. The increased capacity and strategic location are likely to enhance the company's ability to attract top talent and accelerate innovation in AI [1].
CONCLUSION
OpenAI's decision to open its first permanent London office with space for over 500 staff highlights its commitment to expanding its research footprint in the UK. The move follows the halting of the Stargate project but signals continued investment in the region's AI talent. Market impact is expected to be medium, as the expansion may strengthen OpenAI's position in global AI research.