92bb2d6f9f06efb4f23ee3e9ca0c1bb7d419a525
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+---
+tags:
+- index
+- san-francisco
+- builders
+title: SF Builder Scene
+type: topic
+visibility: public-edit
+---
+
+# SF Builder Scene
+
+an opinionated, vibes-first guide to San Francisco's builder and tech scene. not a Yelp directory — insider knowledge from someone actually in it.
+
+## the guide
+
+| page | what it covers |
+|---|---|
+| [[spaces]] | coworking, third places — the Commons, Mox, Shack15, House of AI, The Vault, and more |
+| [[hacker-houses]] | AGI House, HF0, Mission Control, The Residency, and the full hacker house landscape |
+| [[events]] | recurring meetups, conferences, hackathons, Frontier Tower's robot fights, and where to find it all |
+| [[communities]] | South Park Commons, Cerebral Valley, Build Club, SVFounders, Sunday Dinners — what's active vs. dead |
+| [[vibe-guide]] | neighborhood-by-neighborhood breakdown — SOMA, Mission, Hayes Valley, Dogpatch, where to actually go |
+| [[how-to-plug-in]] | practical first-week playbook for newcomers, how to not be cringe, the acceleration path |
+
+## quick start
+
+if you just landed in SF and want to plug into the builder scene:
+
+1. get a membership at [[spaces|The Commons]] ($70/mo) or [[spaces|Mox]]
+2. go to [[events|Sundays in SF]] this weekend
+3. subscribe to the [Cerebral Valley newsletter](https://cerebralvalley.beehiiv.com/)
+4. read [[how-to-plug-in|the full playbook]]
+
+## about this wiki
+
+maintained by Harrison Qian. last updated April 2026. if something's wrong or missing, it probably is — the scene moves fast.
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+---
+sources:
+- web research april 2026
+tags:
+- communities
+- organizations
+- networks
+title: communities & orgs
+type: topic
+visibility: public-edit
+---
+
+# communities & orgs
+
+honest assessment of what's actually active, what's dead, and what's worth your time. the SF builder scene runs on communities more than companies — the right group gets you further than the right resume.
+
+## the active ones
+
+### South Park Commons (SPC)
+
+the anti-incubator. founded by Ruchi Sanghvi (Facebook's first female engineer) and Aditya Agarwal (both ex-Dropbox execs). focused on the "-1 to 0" phase — before you even have an idea.
+
+175 active members, 800+ alumni, 80% of whom are founders. residency program for people exploring what to build next. the spring 2026 cohort kicked off late March.
+
+this is the real deal for people in the exploration phase. not a pitch-deck factory. you come here when you're smart and motivated but don't know what to work on yet.
+
+- **link:** [southparkcommons.com](https://www.southparkcommons.com/)
+- **status:** very active, ongoing cohorts
+- **how to get in:** [apply](https://www.southparkcommons.com/apply)
+
+### Cerebral Valley
+
+the #1 AI community, period. events platform + newsletter + summit connecting ML engineers, AI researchers, and startup founders. their [[events|events calendar]] is the best-curated AI events feed in SF.
+
+the annual Cerebral Valley AI Summit draws speakers from Anthropic, xAI, Vercel, Replit. the beehiiv newsletter is worth subscribing to for weekly SF AI event roundups.
+
+not a membership org — more of a coordination layer for the AI scene.
+
+- **link:** [cerebralvalley.ai](https://cerebralvalley.ai/)
+- **status:** very active, growing
+
+### Build Club
+
+founded by Annie Liao in 2023. goal: train 1 million AI builders by 2026. 10,000+ builders, 11,000+ projects shipped. raised $1.75M from Airtree and Blackbird.
+
+three pillars: e-learning (project-based AI skills), bounties (marketplace connecting builders with businesses), and community (60+ local chapters, each with a community lead). they run the AI+ Renaissance Conference.
+
+more of a learning/shipping community than a networking one. good if you want to actually build, not just talk about building.
+
+- **link:** [buildclub.ai](https://buildclub.ai/)
+- **status:** very active, global
+
+### SVFounders / Incepto House
+
+founder community with ties to [[hacker-houses|Incepto House]]. less public profile than some of the flashier communities but real founder connections.
+
+- **status:** active
+
+### Sunday Dinners
+
+curated dinner network for founders. small, intimate, conversation-focused. the value is in the curation — these aren't 200-person mixers, they're 10-20 person dinners where everyone is actually building something.
+
+the broader trend: curated founder dinners are having a moment in SF. Supermomos, Untapped Ventures, and various angel groups all run their own versions. the best ones are invite-only and word-of-mouth.
+
+- **status:** active, invitation-based
+
+### The Neighborhood (Hayes Valley)
+
+an open collective of 200+ builders, founders, researchers, artists living within a single square mile in Hayes Valley. the goal: an intergenerational campus of radical agency and unplanned encounters with friends.
+
+[[spaces|The Commons]] is their physical anchor. this is less of an org and more of a geographic community — people who chose to live near each other and make stuff happen.
+
+- **status:** active, growing
+
+### Bond AI
+
+120,000+ members, the largest in-person AI events community. operates primarily through [[events|Luma events]]. more of an events brand than a tight-knit community, but their events draw serious crowds.
+
+- **link:** [Luma: Bond AI](https://luma.com/genai-sf)
+- **status:** very active
+
+### AI Tinkerers SF
+
+exclusively for builders — engineers, researchers, developers working hands-on with AI. every demo runs live code, no slides. 214 cities, 96,000+ members globally. the SF chapter is one of the strongest.
+
+- **link:** [sf.aitinkerers.org](https://sf.aitinkerers.org/)
+- **status:** very active
+
+## the established institutions
+
+### Socratica
+
+started 2022 at University of Waterloo. weekly coworking every Sunday: show up, work, demo at the end. no speakers, no panels. 40 chapters across 10 countries, 3,000+ students, 100+ trained hosts.
+
+SF doesn't have an official Socratica chapter, but [[events|Sundays in SF]] runs the same model. the Socratica brand and format is spreading fast — their March 2025 symposium hit 2,500 attendees.
+
+- **link:** [socratica.info](https://www.socratica.info/)
+- **status:** active globally, SF has inspired offshoots
+
+### Pioneer
+
+fully remote accelerator funding ambitious outsiders globally. 3-month program, optional $20K investment at $2M valuation. the SF connection: a 1-month in-person summit in SF with other Pioneers. 300+ founders in 50+ countries.
+
+gamification-based accountability — you set goals weekly and compete with other founders. good for people outside SF who want a foot in the door.
+
+- **link:** [pioneer.app](https://pioneer.app/)
+- **status:** active
+
+## the dead or fading ones
+
+### Buildspace
+
+closed after Season 5. Nights and Weekends was a legit 6-week virtual accelerator — the final season had an in-person event at Fort Mason Center. YC-backed. but it's done now.
+
+the energy that was in Buildspace migrated to Build Club and other project-shipping communities. RIP.
+
+- **status:** dead
+
+### On Deck
+
+had a moment during 2020-2021 when everyone was remote and craving community. ran multiple fellowship programs (ODF for founders, ODW for writers, etc.). they've significantly scaled back. some programs still exist but the cultural moment has passed.
+
+what On Deck did well — creating peer cohorts of ambitious people — is now being done by a dozen other orgs. the brand still has name recognition but the energy has moved on.
+
+- **status:** fading
+
+## how to think about communities
+
+the ones that matter share a few traits:
+- **they ship.** the best communities are organized around building, not networking.
+- **they're selective enough.** if anyone can join, the signal-to-noise ratio collapses.
+- **they have a physical anchor.** pure-online communities fade. the ones tied to [[spaces|physical spaces]] or [[events|recurring events]] persist.
+
+see [[how-to-plug-in|how to plug in]] for the practical guide to joining these.
+
+---
+
+**2026-04-11** (from web research): initial compilation. SPC, Cerebral Valley, Build Club, and AI Tinkerers are the clear most-active communities. Buildspace is confirmed dead. On Deck is fading.
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+---
+sources:
+- web research april 2026
+- luma
+- cerebral valley
+- garysguide
+tags:
+- events
+- meetups
+- hackathons
+- conferences
+title: events & meetups
+type: topic
+visibility: public-edit
+---
+
+# 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](https://luma.com/sf)** — the default. most SF builder events live here. follow specific organizers, not just the city feed.
+- **[Cerebral Valley](https://cerebralvalley.ai/events)** — the #1 AI community calendar. if you care about AI/ML, subscribe to this.
+- **[GarysGuide](https://www.garysguide.com/events?region=sf)** — the OG SF tech events board. broader than Luma, catches things that don't make it to other platforms.
+- **[Bond AI](https://luma.com/genai-sf)** — 120k+ members, largest in-person AI events community. their Luma calendar is solid.
+- **[Partiful](https://partiful.com)** — where the more social/party events live. less builder-focused but good for the scene.
+- **[Meetup](https://meetup.com)** — 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|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](https://luma.com/frontiertower)
+
+### 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.
+- [sf.aitinkerers.org](https://sf.aitinkerers.org/)
+
+**AI Builders** — premier community spanning SF, Singapore, and Tokyo. regular meetups with actual shipping demos.
+- [Luma: AI Builders](https://luma.com/theaibuildersdev)
+
+**Sundays in SF** — weekly coworking club for creative side projects. inspired by [[communities|Socratica]]'s model. show up, work on your thing, demo at the end.
+- [sundaysinsf.com](https://sundaysinsf.com/)
+
+### 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.
+- [cerebralvalley.com](https://cerebralvalley.com/)
+
+**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](https://dev.events/hackathons/NA/US/CA/San_Francisco) 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. [[hacker-houses|HF0]], [[hacker-houses|Accelr8]], and [[spaces|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|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.
+- [[how-to-plug-in|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.
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+---
+sources:
+- web research april 2026
+- business insider top 7 2025
+- sf standard
+tags:
+- housing
+- residencies
+- hacker-houses
+title: hacker houses & residencies
+type: topic
+visibility: public-edit
+---
+
+# hacker houses & residencies
+
+SF's hacker house scene is booming — by early 2026, startups are literally competing for mansions. the model: live together, build together, meals and laundry handled so you can focus. some are legendary, some are mid, some are brand new and figuring it out.
+
+## the legendary ones
+
+### AGI House
+
+the one everyone's heard of. actually two locations now (that sued each other over the name):
+
+**hillsborough mansion** — $68M estate with a koi pond, pool, and movie theater. 8-10 founders/researchers at a time. they have their own venture fund and can cut checks up to $1M. hosted Andrej Karpathy, backed by Index Ventures and Anthropic.
+
+**twin peaks SF** — the city location, focused on AI. no cold applications — everything is word of mouth. [[events|referral.bike]] launched here in march 2026.
+
+AGI House is the prestige play. the events are worth attending even if you don't live there — they draw the AI research crowd and serious founders.
+
+- **link:** [agihouse.ai](https://agihouse.ai/)
+- **how to get in:** know someone. no application.
+
+### HF0 (Hacker Fellowship Zero)
+
+the "Stanford of hacker houses." 12-week live-in residency in a 20,000 sqft SF mansion. everything handled — meals, laundry, the works. $1M check via uncapped SAFE, 5% equity.
+
+founded by Dave Fontenot, who lived in monasteries in Thailand, China, and California before applying monastic principles (routine, simplicity, focus) to startup building. backed by a16z's Marc Andreessen and Chris Dixon, Naval Ravikant, and Google's AI Fund.
+
+famous alum: Demi Guo (Pika Labs). the first class produced three unicorns: Ramp, Pave, Fabric. demo day is private, at the house, with a curated group from Sequoia, a16z, Benchmark.
+
+the most selective. if you get in, you're set.
+
+- **link:** [hf0.com](https://www.hf0.com/)
+- **how to get in:** application-based, extremely selective
+
+### Mission Control
+
+SF's oldest hacker house. 10 rooms, 6,400 sqft in the Mission District. started as summer housing for the 2014 Thiel Fellow class — residents included Vitalik Buterin (Ethereum) and Lucy Guo (Scale AI).
+
+still spawning companies 11 years later (Hightouch, Pylon). residents are raising their own venture fund, Mission Street Capital. VCs from Sequoia and a16z have been visiting.
+
+rent is ~$1,600/month, about half a normal SF one-bedroom. no cold applications — you need someone in the house to advocate for you, and even then less than 3% get through.
+
+this is the OG. proudly no-frills. people have slept in tents and closets here. collectively, residents have raised $2B in VC funding.
+
+- **link:** [missioncontrol.house](https://www.missioncontrol.house/)
+- **how to get in:** referral only, <3% acceptance
+
+## the newer wave
+
+### The Residency / SF Parc
+
+live-in incubator with 3-6 month cohorts. housing, meals, compute credits for AI models. but also: therapy, executive coaching, conflict-resolution sessions. residents' projects collectively valued at $200M+.
+
+part of a global network of homes for ambitious people. more structured than a typical hacker house — feels like a proper program.
+
+- **link:** [sfparc.com](https://www.sfparc.com/)
+
+### Accelr8
+
+3-month cohort in a 15-bedroom house. monthly hackathons and demo days where you pitch VCs and angels. more accelerator than house.
+
+### HackHerHouse / FoundHer House
+
+the first all-female hacker houses in the Bay. HackHerHouse launched with 7 inaugural residents. FoundHer House supports female founders in AI. rent is subsidized so founders can focus on building, not housing costs.
+
+important addition to a scene that's been overwhelmingly male.
+
+### Capi House
+
+a "home (not a hacker house)" for immigrant founders in SF. shared and private rooms, plus a guest room for short-term visitors. named as a nod to the cash assistance program for immigrants.
+
+### Foundry
+
+coliving residency for startup founders with dinners, fitness, and demo days. positions itself as the #1 hacker house, which is debatable, but it's a solid operation.
+
+- **link:** [foundry.today](https://foundry.today/)
+
+## other notable houses
+
+### Incepto House / SVFounders
+
+part of the [[communities|SVFounders]] network. less public profile than AGI House but connected to a real founder community.
+
+## the vibe
+
+living in a hacker house is not for everyone. you're giving up privacy and personal space in exchange for density of ambition. the good ones create genuine creative pressure — you're surrounded by people building, shipping, fundraising. the bad ones are just expensive group houses with a Notion page.
+
+questions to ask before committing:
+- who are the current residents? (the people matter more than the house)
+- what's the acceptance rate? (if everyone gets in, the value is low)
+- is there a venture fund or investor access? (the real differentiator)
+- how long has it been running? (longevity = track record)
+
+if you want the builder energy without sharing a bathroom, [[spaces|coworking spaces]] get you most of the way there. and [[how-to-plug-in|how to plug in]] has the practical guide to getting connected to these communities.
+
+---
+
+**2026-04-11** (from web research): initial compilation. AGI House, HF0, Mission Control are the clear top tier. the scene is expanding fast — SF Standard reported startups competing for mansions by March 2026.
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+---
+sources:
+- web research april 2026
+- personal experience
+tags:
+- guide
+- newcomer
+- networking
+- getting-started
+title: how to plug in
+type: topic
+visibility: public-edit
+---
+
+# how to plug in
+
+practical guide for someone new to SF's builder scene. not platitudes — actual steps.
+
+## before you arrive
+
+1. **set up your discovery feeds.** subscribe to these before you land:
+ - [Cerebral Valley newsletter](https://cerebralvalley.beehiiv.com/) — weekly AI event roundups
+ - [Luma SF](https://luma.com/sf) — follow specific organizers, not just the city feed
+ - [GarysGuide](https://www.garysguide.com/events?region=sf) — broadest SF tech events calendar
+ - [Bay Area Founders Club](https://bayareafoundersclub.substack.com/) — weekly event digests
+
+2. **have something to show.** SF respects builders. if you can demo something — anything — you're already ahead of 80% of people who show up to events. a half-built prototype beats a polished pitch deck.
+
+3. **pick your lane.** are you AI? biotech? SaaS? consumer? the scene is big enough that you need to focus. the AI lane is the most active right now.
+
+## your first week
+
+### day 1-2: get oriented
+
+- walk [[vibe-guide|SOMA]], [[vibe-guide|Hayes Valley]], and the [[vibe-guide|Mission]]. get the geography in your body.
+- grab coffee at Sightglass (SOMA) or Four Barrel (Mission). bring your laptop. look approachable.
+- sign up for a [[spaces|coworking day pass]] at [[spaces|The Commons]] ($70/mo is a no-brainer) or [[spaces|Mox]].
+
+### day 3-4: attend your first events
+
+start with these (in order of approachability):
+
+1. **[[events|Sundays in SF]]** — weekly coworking + demo. low-pressure, show up and work on your thing. this is the easiest on-ramp.
+2. **[[events|AI Tinkerers]]** — if you're technical and building AI. live code demos only. high signal.
+3. **any Luma event with <100 RSVPs** — smaller events are better for your first week. you'll actually talk to people.
+
+avoid: massive networking mixers, anything that costs >$50 to attend (unless it's a legit conference), anything that describes itself as "exclusive" without being invite-only.
+
+### day 5-7: go deeper
+
+- apply to [[communities|South Park Commons]] if you're exploring what to build
+- attend a [[events|Frontier Tower]] event for the full SF experience
+- look at [[hacker-houses|hacker house]] options if you're staying long-term
+- find the Luma page for your specific interest area and RSVP to the next 3 events
+
+## how to not be cringe
+
+this section exists because people need it.
+
+**do:**
+- lead with what you're building, not where you went to school or where you worked
+- ask people what they're working on and actually listen
+- follow up within 24 hours if you have a genuine reason to (not "great to meet you!" — something specific)
+- show up consistently to the same events. regulars > tourists.
+- bring something to share — a demo, a take, a skill. the scene runs on reciprocity.
+
+**don't:**
+- introduce yourself with your LinkedIn headline
+- ask "so what do you do?" as an opener (ask "what are you building?" or "what are you excited about?")
+- collect business cards / contacts like Pokemon. 3 real conversations > 30 handshakes.
+- name-drop investors or companies you're "connected to"
+- pitch people unprompted. read the room.
+- wear a Patagonia vest unironically. (half-joking)
+
+**the meta-rule:** SF's builder scene rewards people who are building things and are genuinely curious about what others are building. it punishes people who are performing. the difference is obvious and everyone can tell.
+
+## the acceleration playbook
+
+once you're past the first week:
+
+### month 1: become a regular
+- pick 2-3 [[events|recurring events]] and don't miss them
+- get a [[spaces|coworking membership]] so you have a daily spot
+- aim for 5 genuine connections (people who'd grab coffee with you again)
+
+### month 2: contribute
+- host a small dinner or working session (even 4-5 people counts)
+- share your work publicly — demo at [[events|Sundays in SF]], post on Twitter/X
+- start getting invited to things (this happens naturally if month 1 went well)
+
+### month 3: you're in
+- by now you should have a crew — people you see weekly, work alongside, get introduced through
+- consider [[hacker-houses|hacker houses]] or [[communities|community programs]] for deeper immersion
+- start introducing other people to each other. this is how you become a node.
+
+## the resources
+
+| what you need | where to go |
+|---|---|
+| a place to work | [[spaces|spaces]] |
+| a place to live with builders | [[hacker-houses|hacker houses]] |
+| events to attend | [[events|events & meetups]] |
+| communities to join | [[communities|communities & orgs]] |
+| neighborhood guide | [[vibe-guide|the vibe guide]] |
+
+## the uncomfortable truth
+
+SF's builder scene is genuinely welcoming to people who are building. it is not welcoming to people who are networking. the difference sounds subtle but it's everything. come with something to show, something to learn, and genuine curiosity — and the city will open up faster than you expect.
+
+---
+
+**2026-04-11** (from web research + personal experience): initial how-to guide. the first-week playbook is: Commons membership → Sundays in SF → AI Tinkerers → Frontier Tower event → apply to SPC if exploring. the anti-cringe advice is real and important.
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+---
+sources:
+- web research april 2026
+tags:
+- coworking
+- third-places
+- workspaces
+title: spaces
+type: topic
+visibility: public-edit
+---
+
+# spaces
+
+where you actually go to work on stuff. not a yelp list — these are the spots where you'll sit next to someone building something interesting and end up in a conversation that matters.
+
+## the best ones
+
+### the commons
+
+4,000 sqft exposed-brick vault underneath Hayes Valley, on the same block as Souvla and Salt & Straw. the vibe has been described as "french salon inside the griffinclaw common room decorated by whoever did the singapore airport." cozy hippie basement energy with a soul-searching undercurrent.
+
+$70-140/month, which is absurdly cheap for what you get. part of [[communities|the Neighborhood]], an open collective of 200+ builders, founders, researchers, and artists living within a single square mile in Hayes Valley. events include potlucks, clean-up days, and the kind of unstructured hangouts where real connections happen.
+
+this is the vibiest third space in SF. not a place to take calls — a place to think.
+
+- **location:** 550 Laguna St, Hayes Valley
+- **vibe:** intellectual curiosity meets co-created play
+- **price:** $70-140/mo
+- **link:** [thesfcommons.com](https://www.thesfcommons.com/)
+
+### mox
+
+40,000 sqft, 300+ desks, SF's largest AI safety community space. if you're in the [[communities|effective altruism]] or AI safety world, this is your home base. but it's broader than that — startups, researchers, writers, hardware people.
+
+the space accommodates teams doing hardware prototyping, which is rare for coworking. they run the Seldon Lab Accelerator out of here. 183 members, 144 guest program participants, 15 offices.
+
+mox punches way above its weight for the price. the guest program is a good way to try it before committing.
+
+- **location:** SOMA
+- **vibe:** AI safety meets general builder energy
+- **price:** varies by membership tier
+- **link:** [moxsf.com](https://moxsf.com/)
+
+### shack15
+
+46,000 sqft on the third floor of the Ferry Building. gorgeous warehouse-type space with views of the bay. this is the bougie option — it's a global members community, not just a coworking space. more curated, more polished.
+
+good for: people who want a beautiful space and don't mind paying for it. the Ferry Building location is unbeatable. bad for: people who want scrappy energy.
+
+- **location:** Ferry Building, 3rd floor
+- **vibe:** polished entrepreneurship club
+- **link:** [shack15.com](https://www.shack15.com/)
+
+### house of AI
+
+curated 6,000 sqft coworking in SOMA, right in the AI startup corridor. 25 AI founders, 24/7 access, La Marzocca espresso, always-filled beer fridge. electric standing desks and Herman Miller chairs.
+
+the curation is the point — this isn't WeWork. they're selective about who gets in because the whole value is that everyone in the room is building AI. two blocks from Caltrain.
+
+- **location:** SOMA
+- **vibe:** small, curated AI founder den
+- **price:** dedicated desks
+- **link:** [house-of.ai](https://www.house-of.ai/)
+
+### the vault
+
+18,000 sqft in Jackson Square ("the new Sand Hill Road" per WSJ). housed in the first Ghirardelli chocolate factory. 8 conference rooms, 2 outdoor patios, event space. they've hosted 300+ events annually, and member companies have raised $2B+ collectively.
+
+more of an acceleration/advisory play than pure coworking. good for international founders who want a landing pad in SF. 34% women members, which is notably better than most tech spaces.
+
+- **location:** 415 Jackson St, Jackson Square
+- **vibe:** global innovation ecosystem, slightly corporate
+- **link:** [thevault.co](https://thevault.co/)
+
+## solid but not special
+
+### WeWork
+
+the SOMA locations are fine if you just need a desk and don't care about community. the one at 600 California St (FiDi) attracts more finance types. avoid the ones that feel like airport lounges.
+
+honestly, WeWork is the default for a reason — it works, it's predictable, and you can book meeting rooms. but you're not going to meet your cofounder there.
+
+### general assembly
+
+more of a bootcamp/education space than coworking. useful if you're learning to code or want structured workshops. not where builders hang out day-to-day.
+
+## the south park area
+
+south park (the actual tiny park in SOMA, not the neighborhood) is historically where a lot of early SF startups clustered. [[communities|South Park Commons]] is named after it. the area still has some residual startup energy, but it's quieter than it used to be. worth walking through — you'll see the small offices and know you're standing where a lot of tech history happened.
+
+## where to find more
+
+- [Luma SF events](https://luma.com/sf) — many spaces host events you can attend before committing
+- [[events|check the events page]] for recurring meetups at these spaces
+- [[vibe-guide|the vibe guide]] covers which neighborhoods these are in and what the surrounding area is like
+
+---
+
+**2026-04-11** (from web research): initial compilation of SF builder spaces. mox, the commons, shack15, house of AI, the vault confirmed active. the commons stands out for vibes-per-dollar. mox is the clear winner for AI safety people. house of AI is the most curated small space.
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+---
+sources:
+- web research april 2026
+tags:
+- neighborhoods
+- vibes
+- coffee
+- geography
+title: the vibe guide
+type: topic
+visibility: public-edit
+---
+
+# the vibe guide
+
+honest neighborhood-by-neighborhood breakdown of where builders actually live, work, and hang out. SF is small — you can bike across the whole thing — but the vibes vary wildly block by block.
+
+## SOMA (South of Market)
+
+**the builder density center.** this is where most of the action is. major tech HQs (Salesforce, formerly Twitter), most [[spaces|coworking spaces]], and the highest concentration of AI startups in the world.
+
+the area around 2nd/3rd and Market is the core. [[spaces|House of AI]] is here. [[events|Frontier Tower]] is at 6th and Market (sketchier, but that's where the wild events happen). south park — the tiny actual park — is where early SF startup culture crystallized.
+
+**the honest assessment:** SOMA is not charming. it's flat, the streets are wide, and parts of it are rough, especially around 6th street. but it's where the work happens. if you want to run into people building AI companies, you'll run into them here.
+
+**coffee spots for builders:**
+- Sightglass Coffee (7th St) — industrial-style roastery, spacious, work-friendly. popular with seed-stage investors and product builders.
+- Snowbird Coffee — small, good vibes
+- various spots along 2nd St corridor
+
+## Hayes Valley
+
+**the cultural heart.** tree-lined streets, Victorian architecture, boutique shops. this is where [[spaces|The Commons]] lives, and it's the center of [[communities|The Neighborhood]] — that 200+ person builder collective.
+
+Hayes Valley has 18+ independent coffee roasters and cafes. it's walkable, central, and beautiful. the vibe is more creative/intellectual than pure tech — artists, researchers, designers mixed in with founders.
+
+**the honest assessment:** it's expensive to live here, and it's more of a hangout neighborhood than a work neighborhood. but if you're in [[communities|The Neighborhood]] community, this is home base. the best vibes-per-square-foot in the city.
+
+**coffee spots for builders:**
+- Ritual Coffee Roasters — the original third-wave SF coffee. you'll see laptops.
+- The Mill — toast and coffee, an institution
+- Matching Half — newer, good work spot
+- Blue Bottle (Linden St) — the original location, worth the pilgrimage once
+
+## Mission District
+
+**the energy.** vibrant, messy, culturally rich. historic buildings, street murals, incredible food. [[hacker-houses|Mission Control]] is here. the younger/scrappier founders tend to gravitate here.
+
+Valencia Street is the main corridor — bars, restaurants, shops. the Mission has the best burritos in the city (La Taqueria, El Farolito — don't @ me). it's flat and bikeable.
+
+**the honest assessment:** gentrification has made it expensive but it still has more character than SOMA. the nightlife is better. if you're in your 20s and want to feel like you're in a real neighborhood, not a tech campus, this is it.
+
+**coffee spots for builders:**
+- Four Barrel Coffee — where founders and angels cross paths casually
+- Ritual Coffee (Valencia) — the flagship
+- Philz Coffee (24th St) — the original. a magnet for early-stage founders where casual chats become warm intros. (note: Philz got acquired by PE in 2025 for $145M, chain vibes increasing)
+
+## Dogpatch
+
+**the emerging play.** converted industrial buildings, flexible commercial spaces. AI startups and biotech companies are moving in. close to UCSF Mission Bay campus. the Pier 70 development is adding 2,600 homes and 1.2M sqft of office/R&D space.
+
+**the honest assessment:** still feels early. not a lot of foot traffic yet. but the [[spaces|spaces]] are cheap and big, and if the development plans play out, this could be the next SOMA in 3-5 years. good bet for people who want space and don't mind being slightly off the beaten path.
+
+**coffee spots:**
+- Mr. Espresso — solid
+- the coffee scene here is still developing, honestly
+
+## FiDi / Jackson Square
+
+**the money.** Financial District is suits and Salesforce Tower. but Jackson Square — just north of FiDi — is where [[spaces|The Vault]] sits, and the WSJ called it "the new Sand Hill Road" for its concentration of VC firms.
+
+if you're fundraising, this is where you take meetings. if you're building, you'll probably work somewhere else.
+
+**the honest assessment:** soulless after 6pm. good for meetings, bad for community.
+
+## where people actually live
+
+most builders in their 20s live in:
+1. **Mission** — best nightlife, most character, good food
+2. **Hayes Valley / NoPa** — beautiful, central, slightly older crowd
+3. **SOMA** — convenient but not charming
+4. **Inner Sunset / Inner Richmond** — cheaper, quieter, good if you want actual peace
+
+the hacker house belt runs through Mission, SOMA, and the edges of Hayes Valley.
+
+## the builder map
+
+```
+Hayes Valley ← vibes, The Commons, The Neighborhood
+ ↓
+Mission ← energy, Mission Control, food, nightlife
+ ↓
+SOMA ← work, AI startups, coworking, Frontier Tower
+ ↓
+Dogpatch ← emerging, space, biotech
+ →
+Jackson Square ← money, VCs, The Vault
+```
+
+the sweet spot for most new builders: live in the Mission, work in SOMA, hang in Hayes Valley. see [[how-to-plug-in|how to plug in]] for the full first-week playbook.
+
+---
+
+**2026-04-11** (from web research): initial vibe guide. SOMA is the density center, Hayes Valley is the vibes center, Mission is the energy center. Dogpatch is emerging but early. the builder map is SOMA → Mission → Hayes Valley as a daily circuit for most people.
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