events & meetups
SF has more builder events than any human can attend. the trick is knowing which ones are worth your time and which are just content-farm networking with bad pizza.
where to find events
these are the calendars that actually matter:
- Luma — the default. most SF builder events live here. follow specific organizers, not just the city feed.
- Cerebral Valley — the #1 AI community calendar. if you care about AI/ML, subscribe to this.
- GarysGuide — the OG SF tech events board. broader than Luma, catches things that don't make it to other platforms.
- Bond AI — 120k+ members, largest in-person AI events community. their Luma calendar is solid.
- Partiful — where the more social/party events live. less builder-focused but good for the scene.
- Meetup — still alive, still useful for recurring technical meetups.
the events worth knowing about
Frontier Tower events
Frontier Tower is a 16-story building at 6th and Market that got bought and turned into a self-governing "vertical village." each floor has a theme — robotics, arts, biotech. the events here are genuinely unhinged in the best way:
- Robot Boxing — humanoid robots fighting in the basement. Vitaly and Xenia Bulatov run the robotics floor and started Ultimate Fighting Bots in July 2025 to create "a tech event that doesn't suck." people bring their own robots to battle.
- Taser Knife Fight Club — yes, real. DIY contact-shock duels with taser-wired rubber blades. started as an undercard for robot fights, now its own thing. growing across hacker houses and pop-ups.
- BioPunk raves — biotech DJs, black lights, LED microbe projections. the biotech floor (8th floor) goes hard.
this is peak SF. nowhere else on earth has this energy.
- link: Frontier Tower on Luma
recurring meetups
AI Tinkerers SF — exclusively for builders. every demo runs live code, no slides. part of a 214-city, 96,000+ member global network. this is the gold standard for technical AI meetups.
AI Builders — premier community spanning SF, Singapore, and Tokyo. regular meetups with actual shipping demos.
Sundays in SF — weekly coworking club for creative side projects. inspired by Socratica's model. show up, work on your thing, demo at the end.
conferences (the ones that matter)
SF Tech Week (October) — the big one. decentralized conference organized by a16z. 2,000+ independently-hosted events across SF. 75,000+ attendees last year. this is when the entire tech world descends on the city. block the week, pick your events carefully.
Cerebral Valley AI Summit — the serious AI conference. speakers from Anthropic, xAI, Vercel, Replit. curated, not a vendor expo.
AI Engineer World's Fair — the largest technical AI conference globally. held at Moscone. 20 tracks, 250 speakers. if you're an AI engineer, this is the one.
SaaStr Annual — 10,000+ founders, execs, investors. 300+ speakers. more SaaS than pure builder, but the networking density is unmatched. includes AI summit, poker night, deep-dive sessions.
GenAI Summit SF (July) — returns to Palace of Fine Arts. genAI focused.
AgentCon SF (May 4, 2026) — developer-focused AI agents conference. talks, workshops, live demos. timely given the agent wave.
hackathons
hackathons are the fastest way to meet builders. some current ones:
- check dev.events for the running list
- Startup Pitch Hackathon — May 9, 2026, SF. if you're reading this, come.
- various AI company-sponsored hacks (Vercel x DeepMind, Helion, etc.) pop up on Luma regularly
demo days & pitch nights
these happen constantly. HF0, Accelr8, and The Vault all run regular demo days. YC demo day is the most famous, but the smaller ones are often better for meeting people at your stage.
PitchForce SF on GarysGuide is a recurring pitch event. various communities run their own pitch nights.
the meta-advice
- don't go to everything. pick 2-3 recurring events and become a regular. consistency > variety.
- the best events are often the smallest. 20-person dinners beat 200-person mixers.
- if an event has a Luma page with 500+ RSVPs and no curation, it's probably mid.
- see how to plug in for the practical playbook on which events to hit first.
2026-04-11 (from web research): initial compilation. Frontier Tower events are the most uniquely SF thing happening. AI Tinkerers and Cerebral Valley are the serious AI communities. SF Tech Week in October is the unmissable anchor event.