Paris edges London to top Europe AI cities ranking

Paris has topped a new European ranking of cities for artificial intelligence, finishing ahead of London in The Observer's first AI Cities Index, which assessed 57 cities across 36 countries.

Globally, Paris ranked fifth and London sixth, behind San Francisco, New York, Seoul and Beijing. Paris was the only French city included. The UK had four cities in the list: London, Oxford, Cambridge and Edinburgh.

The index measured cities across three pillars: investment, innovation and implementation. It was designed to move beyond national comparisons and identify the metropolitan areas driving AI development.

Paris performed particularly strongly on investment, ranking third in the world behind only San Francisco and New York.

That reflects both private funding and public backing in France. Paris-based Mistral AI raised €1.7 billion in 2025 at a valuation of about €12 billion, while President Emmanuel Macron pledged €109 billion in AI investment. State investment bank Bpifrance has also deployed about €10 billion into the country's AI sector, including direct stakes in Mistral.

London, by contrast, scored better than Paris on innovation and implementation but still finished lower overall. The gap was narrow, with London scoring just 0.2 points fewer than Paris.

The UK capital also has greater breadth as an AI cluster. More than 6,500 AI companies are based in London, according to figures cited in the research, including Nscale, ElevenLabs, DeepMind and Wayve. Permanent London job postings citing AI skills also more than doubled year on year over the past six months.

Hannah Schuller, an AI index researcher at The Observer, said the contest between the two capitals was close and reflected different strengths.

"Paris might lead the ranking for Europe, but its lead is slight. Paris and London are almost neck and neck. That said, the two capital cities have very different profiles: London outperforms on the innovation and implementation pillars, but ranks lower overall on investment. London is third globally when it comes to the strength of its commercial ecosystem and institutions, whereas Paris is leading the world on public investment and ranks highly for its open-source models. Paris is getting strong state backing from a top-down push to lead the world in open models, particularly in pursuing the sovereign European market as an alternative to the dominance of US closed commercial models," Schuller said.

Global picture

The wider rankings underline the difficulty European cities face in competing with the US and East Asia. Europe accounted for 40% of the cities included in the index, but only Paris and London made the global top 10.

US and Asian cities occupied the highest places. San Francisco and New York took the top two spots, followed by Seoul and Beijing. Shenzhen, Shanghai, Tokyo and Singapore also made the top 10.

The data suggests Europe has scale but not city-level leadership. Many European cities featured, but the top of the table was dominated by hubs with deeper pools of capital or stronger public-sector deployment of AI.

Seoul stood out as the strongest performer outside the US. It ranked first in the world for implementation, the category measuring how far a city has built the infrastructure, institutions and systems needed to use AI across business, government, education and communities.

That result reflects South Korea's state-led approach and the concentration of semiconductor expertise in the capital. Seoul is home to about 200 semiconductor headquarters, including Samsung and SK Hynix, and has established the Seoul AI Innovation Committee to support smaller businesses that lack in-house AI resources.

Tokyo ranked third and Singapore fifth in the implementation category, while Shanghai, Shenzhen and Beijing also made the global top 10 on that measure. Cities such as Seoul, Singapore and Beijing have built stronger institutional structures for public-sector use of AI than some leading US cities, where adoption was described as fragmented and still at the pilot stage.

Not all well-known technology centres performed equally on implementation. Tel Aviv and Dubai, despite their reputations for technology investment and state support, did not place in the top 10 for that category.

Patricia Clarke said the city-by-city view changed the picture of how AI influence is developing around the world.

"This is the first time anyone has mapped AI's ever-expanding reach beyond the national level. Unsurprisingly, San Francisco defends its reputation as the capital of technology and innovation. But Europe's story is more nuanced. Paris has built momentum on the back of state investment and homegrown AI champion Mistral, while London's strength lies in the scale of its commercial ecosystem. Neither city has yet matched the East Asian hubs setting the pace on implementation, but together they show Europe is not a passive observer in this race. What this index makes clear is that the map of AI power is redrawing itself around cities. Some of tomorrow's most important AI decisions may not be made in Washington or Beijing, or even Paris or London, but in Seoul, Shenzhen and a handful of other emerging hubs," said Patricia Clarke, Technology Editor at The Observer.