Every founder I talk to right now is making the same three decisions at the same time. Where to raise. Where to hire. Where to plant the flag.
Two years ago those were three separate decisions. In 2026 they are one decision — and it is being made in nine cities. That is the finding of The 5W AI City Index 2026, the first global ranking of 25 metros across six measured dimensions of AI competitiveness.
The nine: San Francisco, London, Beijing, Tel Aviv, Singapore, Seoul, Paris, Boston, Abu Dhabi. If you are building a serious AI company and you are not headquartered in one of those cities — or building a credible presence in one — you are already at a disadvantage most founders have not priced in.
San Francisco reversed itself. That should end the debate.
The San Francisco decline story was the consensus story for three years running. It was wrong. In 2025 San Francisco grew 0.62% — the only one of America's four legacy urban cores actually expanding. Downtown office leasing rose 20%. Office vacancy fell 3.7 points, the steepest annual drop since 2011. Rents are climbing. The talent is coming back.
The pull is OpenAI, Anthropic, xAI, Nvidia, and the constellation of frontier and applied AI labs anchored within a mile and a half of each other. Founders who need to hire the top 1% of ML engineers are moving to where those engineers already live. That is how talent gravity works. It has not been suspended by remote work. It has been amplified by AI.
The global picture is the same story in five languages.
London raised £8.3 billion in AI venture capital in 2025 — a record. Beijing now directs 66% of its local venture capital into AI, the highest share of any city on Earth. Tel Aviv pulled in roughly $15.6 billion of tech investment and was ranked first globally in cybersecurity AI by the World Future Awards. Abu Dhabi committed a 5-gigawatt AI campus — the largest AI infrastructure project outside the United States — with $15.2 billion in Microsoft commitments attached.
Every one of those cities is now easier to raise money in, easier to hire senior engineers in, and easier to close enterprise contracts from than the cities immediately below them on the leaderboard. Compounding advantage is compounding.
The sixth dimension founders keep missing.
The Index measures the five things you would expect — capital, talent, infrastructure, policy, frontier-lab presence. The sixth is the one founders should study hardest: Citation Share.
Citation Share is how each city is described inside ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews when a prompt asks about the AI economy. It is now a leading indicator. When more than a third of consumers begin research inside an AI engine — and when your future customers, hires, and investors do the same — being named by the machine is not a marketing detail. It is a distribution channel.
This applies to your company the same way it applies to your city. If the machine names your competitor when a buyer asks the category question, you are outside the consideration set before the pitch begins.
Nine cities. Twenty-four months.
The founders who move now — physically, capitally, and in citation terms — will be inside the answer set for the rest of the decade. The founders who wait will be reading about the winners on the leaderboards of 2028.
Read the Index. Then decide.
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Ronn Torossian is the founder and chairman of 5W AI Communications, the AI Communications Firm. He is the publisher of Everything-PR and the author of two best-selling editions of For Immediate Release. Read The 5W AI City Index 2026.