SF Bay Area Events: GitHub Universe and Halloween Week, October 26–November 1, 2026

GitHub Universe runs Wednesday and Thursday at Fort Mason Center, and the in-person tickets are gone. Virtual registration is still free. 1 The listed in-person rate before it sold out was US$1,399. 2

One Way Summit fills the same two days at The Commonwealth Club, and its tickets are still on sale at US$149 to US$499. 3 4 The organisers count 1,000 attendees, 100 startups pitching and 30-plus speakers.

ODSC AI West takes three days in Burlingame from Tuesday, with nine tracks and more than 250 speakers. 5 Its expo pass is free by application, or US$99 to guarantee a place.

So Tuesday and Wednesday carry the weight of the week. Halloween then lands on Saturday, October 31, with two hackathons in the morning and two costume parties after dark. Everything below was checked on Sunday, October 25, 2026, and every time is Pacific.

The week at a glance

Ranking weighs topic relevance first, then the evidence of quality: who hosts it, whether a programme or speaker list is published, how selective the room is, and whether registration is still open. Each status is what the event's own page reported on October 25.

Rank	Event	When	Where	Category	Entry	Status and access
1	GitHub Universe 2026	Wed–Thu, Oct 28–29, doors 7:30 AM	Fort Mason Center, 2 Marina Blvd, San Francisco	Developer conference	In-person sold out; virtual free	In-person passes gone when checked; free virtual registration open. Keynote 9:00 AM Wednesday, breakouts until 5:30 PM, closing keynote 2:00 PM Thursday. 1
2	One Way Summit 2026	Wed–Thu, Oct 28–29, 9:00 AM	The Commonwealth Club, 110 The Embarcadero, San Francisco	Founder conference	Ticketed, US$149–US$499	Tickets on sale when checked. Anna Makanju of OpenAI, Severin Hacker of Duolingo and Cal Henderson of Slack speak; 100 startups pitch in two minutes with no deck. 3
3	Haunted Hacks: Real-Time AI Edition	Sat, Oct 31, doors 10:00 AM	Y Combinator, San Francisco	Hackathon	Free, application	Requests open when checked. Best overall takes a guaranteed YC interview, US$5,000 in OpenAI credits and three months of Mastra; hacking 11:00 AM to 4:00 PM. 6
4	SEV0	Tue, Oct 27, 9:00 AM–7:30 PM	SFJAZZ, 201 Franklin St, San Francisco	Reliability conference	Ticketed, US$199	Tickets on sale when checked. incident.io's one-day conference for SREs, engineering leaders and CTOs; its customers get a complimentary link. 7
5	STRANGER BUILDS	Sat, Oct 31, 10:00 AM	San Francisco; address to approved builders	Hackathon	Free, application	Applications open when checked. US$10,000 in cash and credits, one day in person then seven days online to ship; Base44 and Fetch.ai are the main sponsors. 8
6	Agentic Infrastructure Stack Summit	Wed, Oct 28, 9:00 AM	Terra Gallery, 511 Harrison St, San Francisco	Enterprise AI summit	Free, application	Application open when checked. VentureBeat caps it at 200 seats, director-level and above at companies with 1,000-plus staff or US$100M-plus revenue. 9
7	ODSC AI West 2026	Tue–Thu, Oct 27–29, 9:00 AM	Hyatt Regency San Francisco Airport, Burlingame	AI conference	Expo free by application or US$99; taught passes from US$699	Registration open when checked. Nine tracks, 250-plus speakers including Peter Norvig and Thomas Dohmke. 5
8	Night Hack by Founders, Inc.	Fri, Oct 30, check-in 4:15 PM	Founders, Inc., Fort Mason, San Francisco	Hackathon	Free	Open when checked. Five hours to build, US$10,000 in Anthropic API credits and US$50 per builder; last edition drew nearly 1,000 signups and 120 projects. 10
9	Are We Running Too Many Agents?	Mon, Oct 26, 6:00 PM	Sentry, San Francisco	AI panel	Free, RSVP	Full when checked, 299 going. exe.dev opens the week with the question every agent team is arguing about internally. 11
10	Running Production with Agents	Tue, Oct 27, 5:30 PM	San Francisco; address to approved guests	AI infrastructure panel	Free, approval	Open when checked, 190 going. Leaders from NVIDIA, Replit and WorkOS on trusting an agent on call and who owns its mistakes. 12
11	San Francisco Syntax Meetup	Tue, Oct 27, 5:00 PM	Barebottle Beer Garden at Salesforce Park	Developer meetup	Free	Full when checked, 522 going. Syntax FM brings its listener crowd into a beer garden in Salesforce Park. 13
12	Who Controls the Future of AI Coding?	Tue, Oct 27, 5:30 PM	San Francisco; address to approved guests	Fireside	Free, approval	Open when checked. Cline chief executive Renee Huang and OpenRouter's Sunil Joseph on open and closed ecosystems, model choice and developer autonomy. 14
13	Entire Espresso with Gergely Orosz and Thomas Dohmke	Thu, Oct 29, 9:00 AM	San Francisco; address on registration	Fireside breakfast	Free, approval	Open when checked, 192 going. Dohmke, now chief executive of Entire and previously of GitHub, talks to The Pragmatic Engineer about a Git forge built for agents. 15
14	Scaling Intelligence opening night	Wed, Oct 28, 7:00 PM	Gray Area / Grand Theater, 2665 Mission St, San Francisco	Art and AI exhibition	Free, RSVP	Full when checked, 600 going. Eleven commissioned works built with Modal cloud credits; the show stays up through November 1 with free gallery hours. 16
15	Women in AI: Factory x Sapienne x Sequoia	Tue, Oct 27, 7:00 PM	San Francisco; address to approved guests	Workshop and fireside	Free, approval	Open when checked. A hands-on session on handing engineering work to Factory's Droids, then a fireside with women leading teams across the three hosts. 17
16	Darkhaven	Sat, Oct 31, 8:00 PM–2:00 AM	Lighthaven, 2740 Telegraph Ave, Berkeley	Themed party	Ticketed, US$50	Open when checked, 65 going. The Avalon Institute's Halloween gala: a US$1,000 costume prize, silent horror films, duels and hide and seek. 18

Monday, October 26

A light Monday, and one argument worth having

Are We Running Too Many Agents? runs 6:00 to 9:00 PM at Sentry. 11 It is free and it filled at 299 going before the week began, so the waitlist is the route in. Status: full when checked.

How to Get Customers to Actually Pay runs 6:30 to 9:00 PM, hosted by Founders on Tap at an address released on approval. 19 Rob Snyder built his last company from zero to US$4M in annual recurring revenue in two years, and he teaches the push-and-pull reading of why a warm lead still says maybe later. It is free, and 134 were going. Status: open when checked, approval required.

Monday has no conference on it, because GitHub Universe keeps its first day for invitation-only programming. 1

Tuesday, October 27

The reliability stage, and three panels at half past five

SEV0 is the day's only full conference in the city, 9:00 AM to 7:30 PM at SFJAZZ. 7 incident.io runs it for the people who carry the pager: SREs, engineering leaders and chief technology officers, with a day of talks on reliability rather than a vendor floor. A ticket is US$199. Status: open when checked.

ODSC AI West opens the same morning at the Hyatt Regency by San Francisco airport in Burlingame. 5 The free expo pass covers two days of the demo hall and the keynotes; the taught tracks start at US$699.

San Francisco Syntax Meetup starts at 5:00 PM in the Barebottle beer garden at Salesforce Park. 13 It is free and it filled at 522 going. Status: full when checked.

Who Controls the Future of AI Coding? pairs Cline's Renee Huang with OpenRouter's Sunil Joseph from 5:30 PM. 14 The room is free. Fireside at 6:00, questions at 6:45, drinks from 7:00. Status: open when checked, approval required.

Running Production with Agents puts NVIDIA, Replit and WorkOS leaders on one panel from 5:30 PM. 12 The panel is free and 190 were going. The subject is the part nobody demos: an agent on call, an investigation heading the wrong way, and who signs off. Status: open when checked, approval required.

Women in AI: Factory x Sapienne x Sequoia starts at 7:00 PM with a workshop, then a fireside. 17 It is free. Bring a laptop; the exercise takes a task from idea to shipped code with no prior coding needed. Status: open when checked, approval required.

Catie Cuan // Physical AI: Giving AI a Robot Body runs 5:30 to 6:30 PM at the Jacobs Institute for Design Innovation in Berkeley. 20 Cuan runs ART Lab and came to robotics through dance, and her argument is that how a robot moves decides whether people trust it. The talk is free; 243 were going. Status: open when checked.

Wednesday, October 28

Universe opens, and the satellites stack up behind it

GitHub Universe, day one, opens its doors at Fort Mason at 7:30 AM. 1 The keynote is at 9:00, breakouts run to 5:30, and GitHub's partners take over the evening at 6:00. In-person registration closed before the issue ran, so the free virtual pass is the only seat left. Status: sold out in person, virtual open.

One Way Summit 2026, day one, opens at 9:00 AM at The Commonwealth Club. 3 The pitch stage is the draw: 100 companies, two minutes each, no slides, judged in industry blocks through the afternoon. Status: tickets on sale when checked, US$149 to US$499.

Agentic Infrastructure Stack Summit runs all day at Terra Gallery, 511 Harrison St. 9 VentureBeat keeps it free and to 200 seats, screened for director-level titles at companies with 1,000-plus staff. Status: application open when checked.

Scaling Intelligence opens at 7:00 PM at Gray Area, 2665 Mission St. 16 Eleven artists and collectives, chosen by open call and given Modal compute credits, made work about scale — satellites, microbial colonies, watersheds inside a network. Opening night is full at 600 going; the show is free during gallery hours from Thursday through November 1. Status: opening full when checked.

GitBlame: Werewolf Happy Hour starts at 5:00 PM at Lobalita, 2231 Chestnut St, from Heavybit with Sanity and Omnara. 21 The room is free. A few people in it are secret wolves, each dropping the same three suspicious lines; naming one wins a prize. Doors 5:00, hunt 5:45. Status: open when checked, approval required.

Builders on the Green runs 6:00 to 8:30 PM at an address released on approval, from Mintlify and Entire. 22 Mini golf and arcade games, no panels, a patio view of Alcatraz; free, and 154 already going. Status: open when checked, approval required.

Thursday, October 29

The last day of the badge, and a Git forge for agents

GitHub Universe, day two, opens at 8:00 AM. 1 The closing keynote is at 2:00 PM and the campus shuts at 3:00. Status: sold out in person, virtual open.

Entire Espresso puts Thomas Dohmke and Gergely Orosz on a couch at 9:30 AM, with coffee from 9:00. 15 Dohmke left GitHub to build a Git host for agents; the talk covers moving past the pull request, CI and agent memory. It is free, and 192 were going. Status: open when checked, approval required.

ODSC AI West closes its third day in Burlingame. 5 Status: registration open when checked.

Inference as Instrument runs 7:00 to 9:00 PM at Gray Area, the second half of the week's Modal pairing. 23 Iana Chugunova, Runway's Ryan Phillips and Modal's Charles Frye talk about inference as a medium; the panel is 7:00 to 7:40 and the exhibition stays open to 9:00. Admission is free. Status: open when checked.

Pancake AI x Corgi runs 5:00 to 10:00 PM at the Corgi Cafe, 9 Claude Ln. 24 It is free. The launch party includes an official Guinness World Records attempt at the tallest stack of pancakes, with 108.3 cm the height to beat and an adjudicator on site. 101 were going. Status: open when checked, approval required.

Redwood Materials Open House opens 5:00 to 7:00 PM at 100 Hooper St, fourth floor. 25 Drinks, a lab tour and the leadership team, in a week otherwise made of software; free. Status: open when checked, approval required.

Text-to-Screech is AssemblyAI's haunted-house launch for a new text-to-speech model, 5:00 to 8:00 PM. 26 It is free, with life-size animatronics wired to the model, candy at every station and a prize for the best costume. Status: open when checked, approval required.

Friday, October 30

A build night, and Berkeley's summit

Night Hack by Founders, Inc. is the week's evening build, at Fort Mason. 10 Check-in at 4:15, building 5:00 to 10:00, exhibition and judging at 10:00, close at 11:00 with no re-entry after 10:00. It is free. Anthropic puts up US$10,000 in API credits plus US$50 per builder, and Firecrawl, Bolt and Convex are partners. Status: open when checked.

Haas Tech & AI Summit 2026 runs 9:00 AM to 5:00 PM in Chou Hall at Berkeley Haas. 27 Investors from LG Technology Ventures and Antler, operators from Bright Machines and Nvidia, a founder spotlight with the chief executive of Coval, and small-group chats with the Samsung directors behind Mistral's €3B round. No price is published; the RSVP is open. Status: open when checked.

Cafe Compute: The Night Before RSI runs 6:30 to 11:00 PM from Cerebras. 28 It is free, and 123 were going. Status: open when checked, approval required.

GitHub's Day of Learning runs 8:00 AM to 4:00 PM at GitHub's headquarters, and it needs its own ticket on top of a Universe pass. 1

Saturday, October 31

Halloween on a Saturday, four rooms at once

Haunted Hacks opens at 10:00 AM inside Y Combinator. 6 Terse and AgentRelay, both current-batch YC companies, host it with OpenAI, Mastra and Supabase. Best overall takes a guaranteed YC interview, US$5,000 in OpenAI credits and three months of Mastra; best use of Durable Actors takes an iPhone, best use of Agent Relay a Mac mini. It is free, and attendees must be 16 or older. Status: requests open when checked.

STRANGER BUILDS also starts at 10:00 AM, in San Francisco at an address released to approved builders. 8 The entry is free and pays US$10,000 in cash and credits, then gives every team seven days online to ship something real people use. Base44 and Fetch.ai are the main sponsors, and Cerebral Valley and The AI Collective are among the community partners. Status: applications open when checked.

Darkhaven runs 8:00 PM to 2:00 AM at Lighthaven, 2740 Telegraph Ave in Berkeley. 18 The Avalon Institute wants elaborate costumes, and it has booked dark stories and poetry, duels, silent horror films, live music and hide and seek across the campus. First prize in the costume contest is US$1,000. Status: open when checked, US$50.

NO BASIC starts at 9:00 PM with 2,090 going and 410 of 2,500 places left. 29 Two rooms, hip-hop and R&B upstairs and house downstairs, costumes mandatory, and the guest list is free before 10:30. The host releases the address to people who RSVP. Status: open when checked.

Sunday, November 1

The quiet day

Hands-on Matcha Workshop by ochamode runs 10:30 AM to noon at Local Economy in Oakland. 30 Three places were left at US$50. Status: open when checked.

Scaling Intelligence has its last day at Gray Area, 2665 Mission St, with free admission during gallery hours. 16 Status: exhibition open, no ticket needed.

Also on the calendar

The rest of the verified shortlist, checked October 25.

Monday, October 26

KEYBOARD NIGHT at User Experience Gallery — 7:00–9:00 PM, 236 Powell St, free; sold out when checked, 75 going. 31

Tuesday, October 27

How Partners Build on Lovable w/ Dan O'Leary — 5:00–8:00 PM, South Park Commons, free, approval required, 64 going. 32
Ping Pong Night // Inference × Depot — 5:30–8:30 PM, SPIN San Francisco, free; a tournament bracket with a Nintendo Switch 2 for the winner. 33
Bay Area Biosecurity Lightning Talks 03 — 7:00–9:30 PM, San Francisco, free, approval required, 66 going; pathogen screening, AI biorisk evaluation and far-UVC. 34
Remathau: People of the Ocean — 5:30–9:00 PM, Mackenzie Room, Stanford, free, approval required; a documentary screening. 35

Wednesday, October 28

Git Sum Dim Sum w/ Databricks & Sentry — 6:00–9:00 PM, Palette Tea House, 900 North Point St, free, approval required, 21 and over; a panel with Kent C. Dodds and Syntax. 36
Drinks Around The Fire: Cartesia x Lorikeet x Speak — 6:30–8:30 PM, San Francisco, free, approval required; a voice-AI fireside with Speak's chief product officer Carl Cummings. 37
What Poetry Can Teach Us About Being Human — 6:30–9:00 PM, Double Black, US$27; sold out when checked, 55 going. 38
Love Potion Crafts Night — 6:00–8:00 PM, The Love Potion Library, US$10; four places left when checked. 39

Thursday, October 29

Designers & Machines October 2026 — 6:30–9:30 PM, South Park Commons, free, approval required; five demos of five minutes each, 50 seats, 56 requests already in. 40

Friday, October 30

City Creatures — Terra Gallery, 511 Harrison St; day session 2:00–5:00 PM free, night party 5:00–11:00 PM at US$15 for a fundraiser. 41
ANNUAL MRC HALLOWEEN PARTY — 7:30 PM–1:30 AM, Novela, US$35; sold out when checked, 129 going. 42

How to choose

If you want a conference badge this week and missed Universe. One Way Summit runs the same two days at US$149 to US$499 and is still selling; ODSC's free expo pass costs nothing but an application.
If you want the cheapest serious day of talks. SEV0 is US$199 for eleven hours at SFJAZZ, aimed at the people who carry the pager.
If you are building an agent and want the room where it is being argued. Tuesday has three overlapping: Rootly's panel at 5:30, Cline and OpenRouter at 5:30, and Factory's workshop at 7:00. All three are free and all three need approval.
If you want to build something this week. Friday's Night Hack gives you five hours; Saturday gives you a full day at either Y Combinator or STRANGER BUILDS, and both start at 10:00 AM.
If you want a founder room with no build attached. The Agentic Infrastructure Stack Summit on Wednesday is free and screened, and Berkeley's Haas summit on Friday runs small-group chats with the Samsung directors behind Mistral's round.
If Halloween is the point. Darkhaven at US$50 in Berkeley is the dress-up one, NO BASIC is the crowd, and both start after 8:00 PM on Saturday.
If you are planning around the week. Tuesday and Wednesday are downtown and Fort Mason; Thursday turns toward art and hardware; Friday and Saturday belong to builders and costumes. Sunday is close to empty.

Source boundaries and disclosures

This is a curated shortlist of the Bay Area technology, AI, founder and builder events worth knowing about for October 26 to November 1, 2026, the week GitHub Universe opens at Fort Mason and Halloween lands on a Saturday. Every date, time, venue and access state came from the event's own page, and registration status is what those pages reported on Sunday, October 25, 2026. Where an entry gives no street address, the host keeps it private and releases it to registered or approved guests.

Three calendars did the work. Luma's San Francisco discovery listing returned 64 events over two pages, 34 of them inside the window. 43 Foundercal's San Francisco calendar covers the whole of October and supplied the anchors no other calendar surfaced, including GitHub Universe, One Way Summit and the VentureBeat summit. 44 Partiful's San Francisco explore page returned 26 in-window gatherings, and one of them, NO BASIC, made the issue. 45

GitHub Universe is here on GitHub's own conference page, which none of the calendars above listed. 1 The same is true of One Way Summit, 3 ODSC AI West 5 and the Y Combinator hackathon. 6 Cerebral Valley surfaced no physical Bay Area event inside the window; its only in-window listing is a ten-day virtual Meta hackathon. 46 Eventbrite's date-filtered San Francisco technology listings returned 18 events for the same days, all recurring networking nights or ticketed pitch sessions with no published programme, so none were carried. 47

The San Francisco Tech Week calendar carried no event in this window; that festival ran October 5 to 11. 48

Where an entry says the room was full, the waitlist is the way in. Hosts release places from it as the date nears.

References

1
GitHub Universe 2026
githubuniverse.com
2
GitHub Universe 2026 listing
foundercal.com
3
One Way Summit 2026
onewaysummit.com
4
One Way Summit listing
foundercal.com
5
ODSC AI West 2026
odsc.ai
6
Haunted Hacks
events.ycombinator.com
7
SEV0
luma.com
8
STRANGER BUILDS
luma.com
9
Agentic Infrastructure Stack Summit
luma.com
10
Night Hack
luma.com
11
Are We Running Too Many Agents?
luma.com
12
Running Production with Agents
luma.com
13
San Francisco Syntax Meetup
luma.com
14
Who Controls the Future of AI Coding?
luma.com
15
Entire Espresso
luma.com
16
Scaling Intelligence
luma.com
17
Women in AI
luma.com
18
Darkhaven
luma.com
19
How to Get Customers to Actually Pay
luma.com
20
Catie Cuan // Physical AI
luma.com
21
GitBlame: Werewolf Happy Hour
luma.com
22
Builders on the Green
luma.com
23
Inference as Instrument
luma.com
24
Pancake AI x Corgi
luma.com
25
Redwood Materials Open House
luma.com
26
Text-to-Screech
luma.com
27
Haas Tech & AI Summit 2026
begin.berkeley.edu
28
Cafe Compute: The Night Before RSI
luma.com
29
NO BASIC
partiful.com
30
Hands-on Matcha Workshop
luma.com
31
KEYBOARD NIGHT
luma.com
32
How Partners Build on Lovable
luma.com
33
Ping Pong Night
luma.com
34
Bay Area Biosecurity Lightning Talks 03
luma.com
35
Remathau
luma.com
36
Git Sum Dim Sum
luma.com
37
Drinks Around The Fire
luma.com
38
What Poetry Can Teach Us
luma.com
39
Love Potion Crafts Night
luma.com
40
Designers & Machines
luma.com
41
City Creatures
luma.com
42
ANNUAL MRC HALLOWEEN PARTY
luma.com
43
Luma San Francisco
luma.com
44
Foundercal San Francisco
foundercal.com
45
Partiful San Francisco
partiful.com
46
Cerebral Valley
cerebralvalley.ai
47
Eventbrite San Francisco technology listings
eventbrite.com
48
San Francisco Tech Week calendar
luma.com