London AI Tuesdays vs SF AI Tuesdays: a tale of two scenes

I spend half my time in SF and a quarter of it in London at this point. The AI meetup scenes in both cities have settled into pretty different rhythms, and people keep asking me which is better. They're asking the wrong question. They're different products.

What you walk into

A London AI meetup on a Tuesday usually has a hundred people, a researcher giving a thirty-minute talk, and a Q&A that runs longer than the talk. The crowd is researchers, engineers, a few founders, and a non-zero number of journalists. People drink wine out of plastic cups. Half the room knows each other.

An SF AI meetup is bigger. Two hundred people, sometimes five. Three short talks instead of one long one. The crowd is operators, recruiters, founders, more operators. People drink Topo Chico or Modelo. Less of the room knows each other but everyone's wearing the same kind of fleece.

The talks

London talks are longer and more careful. A researcher from Google DeepMind or the Anthropic London office will go through a paper for twenty-five minutes. The Q&A will get into details. Nobody pretends to understand if they don't — there's a culture of asking the dumb question.

SF talks are shorter and more product. Someone from Mercor or Cursor will demo a thing for ten minutes. There will be a graph that goes up and to the right. The Q&A will be three questions, two of which are "are you hiring."

Both formats work. They just attract different people.

The hiring layer

If you're job hunting, SF is denser. You will meet someone who is hiring you within three meetups. London is slower — the recruiters are there but they're subtler. The good London hires happen in the pub afterwards, not at the event.

If you want a role at DeepMind or Anthropic London or one of the bigger UK shops, London meetups are where the path actually exists. The hiring managers genuinely show up.

Cost and logistics

Both are mostly free. London charges occasionally — a fiver for food, sometimes ten if it's at a fancier venue. SF is mostly sponsor-funded and free, which means RSVP gates and the occasional "what's your LinkedIn" door check.

London meetups generally start at 6:30 and end at 9, with the actual networking happening at the pub from 9 to 11. SF meetups start at 6, end at 8, and people go home or to one specific bar in SoMa that everyone's sick of.

The honest take

If you want to learn something specific, London is probably the better midweek bet right now. The talks are deeper, the questions are sharper, and the drift toward research-first content has been pretty noticeable over the last year.

If you want to ship, hire, raise, or sell, SF is still the place. The meetups are a working part of the ecosystem in a way they aren't in London. You go to find your next coworker, your next investor, your next customer. London is more of a side dish.

Most of the best AI people I know float between both. They'll do a London Tuesday for the depth and an SF Tuesday for the operating tempo. The only really wrong answer is doing neither.

Rifio actually pulls AI meetups from both cities — see AI events in London or filter on the SF this-week page. Saves the manual Luma trawl.