The Weekend
Tech from Friday evening through Sunday night.
On now
On now
Caravan '26: The most hands-on edition yet.
On now
Caravan '26: Where Investors find India's AI edge, first.
On now
Qdrant @ WeAreDevelopers World Congress San Jose
Join us at WeAreDevelopers in San Jose! This is not an event ticket Our booth number is 401 Come see us September 24 and 25th Hosted by Qdrant
On now
WeAreDevelopers Networking Day (with GitHub)
Welcome to WeAreDevelopers World Congress North America! Brought to you in Partnership with Docker Three days filled with Networking, Building, Learning, and Growth. Check the full agenda below: Warm-up Day (Free) by GitHub and Presenting partner Docker The Bay Area has no…
Tomorrow · Friday, September 25
9:30 AM
Ship from Zero Hackathon
9:30 AM
Long Horizon Agents Hackathon
Long-horizon agents still break down over time: they accumulate observations, actions, and stale context until the growing history slows them down, costs more, and makes their own state less reliable.
10:00 AM
CIMC Hackathon: Lattice Animals
2:00 PM
Beyond Payment: The Changing Customer, The Changing Merchant
Beyond Payment: The Changing Customer, The Changing Merchant Join Aurfy and NihaoPay for a fulfilling afternoon gathering designed for payments leaders, founders, merchants, investors, and builders shaping the next era of commerce.
4:00 PM
F26 + YC Alumni Mixer
4:00 PM
Second Brain AI Salon #08 - Can AI Make Us Better Thinkers? Debate, Cognition & the Future of Human Reasoning
Can AI Make Us Better Thinkers? Debate, Cognition & the Future of Human Reasoning Date & Time: Friday, September 25, 2026 | 4:00 PM – 6:00 PM PDT Location: LinkedIn San Francisco (1st Floor Public Space), 222 2nd Street, San Francisco, CA Hosts & Guest Henry Kendall — Second…
4:45 PM
AI for Social Good: San Francisco Presentations & Reception
5:00 PM
build fridays sf x clickhouse + langfuse — work on your startup alongside others
Build Fridays SF 5–9 pm at ClickHouse HQ, San Francisco. Bring your laptop. What it is A bi-weekly Friday gathering for people actively building startups, products and ambitious projects. Grab some free food, free coworking space and work alongside other builders.
5:30 PM
Emotion By Design
6:00 PM
Agent Builder Social
6:00 PM
More Code Than Anyone Can Check – Software Engineering in the Age of AI
6:00 PM
Vibe Coder Vampires Night! (Lunatechs X Crewbase Collective)
6:00 PM
Building for Resilience: What Makes a Company Hard to Kill
6:00 PM
Birds of a Feather- Jev Demo Night
6:00 PM
Climate & Pizza: The Human Footprint of Energy Innovation ⚡🧠
Where is the energy transition actually taking us, and how does it impact the communities we live in? Join us for an engaging evening exploring the intersection of energy infrastructure, emerging tech trends, and human-centered policy.
6:00 PM
Gullie x Datacurve Private Dinner: Founders, AI Researchers & Engineers
15 pax dinner Hosted by rachael annabelle yong & Jinjin Niu
6:00 PM
Attention Is the Bottleneck — Content, Distribution & Growth Hacking
6:00 PM
Voice AI for Real Life - Members +3
Voice AI for Real Life: Community Discovery is the first event in a three-part series presented by NemulAI x Lynkable, bringing together founders, builders, operators, and community leaders to explore the real-world problems voice technology should solve next.
6:00 PM
Gullie x Datacurve Private Dinner: Founders, AI Researchers & Engineers
6:00 PM
Vibe Night Demos (#27)
6:30 PM
Shabbating @Long Journey
7:00 PM
Omakase Dinner • AGI x 21st x Blue Neck Investments x YY
7:00 PM
The Agentic Law Firm: Fireside with Logan Brown
We are thrilled to host Logan Brown at the EF offices this Friday at 7pm. Logan had a classic Big Law training: Harvard Law School, followed by a stint at Cooley Last year, Logan quit her job to build an AI-native law firm.
7:00 PM
Cal vs Clemson in the Box with Top Founders - presented by The House Fund
7:00 PM
#chinamaxxing | Exhibition Opening @ TIAT
7:30 PM
Founders Dinner - Sushi Night
10:00 PM
EPIQ: Save The Date
One Night Only - for founders and builders in the innovation economy. Special performance by DIPLO.
Saturday, September 26
1:30 AM
HeyGen Community Meetup: Create, Connect & Build with AI
7:00 AM
Claude Code: Ship Your First AI Agent
Click to join: https://luma.com/join/g-iw4ApDt9JXF2CO1 Stop Prompting, Start Building: From Idea to Working AI Agent in 60 Minutes You've used ChatGPT. You've prompted Claude. Now build something that runs itself.
8:30 AM
Hackathon: AI Tools for Better Decisions and Coordination
9:00 AM
Build Your AI Co-Founder Hackathon
9:00 AM
Builders who Run SF — 5K
Builders who Run is an informal and international running club. This is our 124th week in a row doing BWR SF. Gear up for a chill 5k run with new and old builder friends at Golden Gate Park! We meet at 9 am and kickstart at 9:10 am sharp.
9:00 AM
Taiwan Tech Summit 2026
9:00 AM
2026 HYSTA Annual Conference | AI at Scale
9:00 AM
⚡ AI Native Camp - Santa Cruz & Online
9:00 AM
Build Your AI Co-Founder Hackathon
9:00 AM
Build Your AI Co-Founder Hackathon
You bring the idea. Build the AI that makes it happen. The Challenge Build Your AI Co-Founder is a hackathon where you build and ship a company with a founding team of 2–4 co-founders, combining humans and AI. Every team must have at least one human and one AI co-founder.
9:00 AM
Jachacks A2Tech
After bringing together 500+ builders from 10+ countries and 20+ universities, JacHacks is coming back to where it all started: the University of Michigan. This time, we’re going bigger. 250 builders. 24 hours. One campus.
9:30 AM
Scrappy AI Founders Go Mountain Biking
9:30 AM
Founders Running Club: SF
Founders Running Club (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We'll run 5 or 10km at your conversational pace.
10:00 AM
Enterprise Builders Hike
10:00 AM
Bayview 3rd Street Cleanup
Join the Civic Joy Fund, Refuse Refuse, SF Public Works, and the Bayview community for a friendly neighborhood cleanup!
10:00 AM
Healthcare AI Hackathon
⚠️ Required: In addition to your Luma registration, you must also register for the AWS Builder Loft using the link below. Both registrations are mandatory. You will also be required to present a valid government-issued physical ID at check-in for building access.
10:00 AM
Showerhacks
An SF 🌉 hackathon where the winner gets to take a shower 🚿 🥇 1st place: $1000 + a refreshing shower 🥈 2nd place: $500 🥉 3rd place: $225 Food provided 🍕 And the top 30% of teams will be invited to the afterparty 🎉🫣 This is a hackathon for absurdly creative and interesting…
10:00 AM
Jev Hackathon (w/ The AI Collective)
10:30 AM
Bagels and Bricks
10:30 AM
How to Build Great Products with the Product Value Blueprint
Presented by California Science & Technology University, The Product Value Blueprint workshop offers startup founders & entrepreneurs a transformative methodology to navigate the critical journey from product ideation to development.
10:30 AM
consumer founder dj set & breakfast
10:30 AM
Bitrig Hacks: iPhone 18 Edition
11:00 AM
WindBorne Weather Balloon Launch @ the Exploratorium
We're at it again. Launching a weather balloon, talking about the weather (standard WindBorne fare) on September 26 at the Exploratorium around 11am from the Fog Bridge!
11:00 AM
Monthly Greater Silicon Valley Robotics & Automation Luncheon
11:00 AM
Joy & Sorrow Screening Session @ Human vs. AI Film Premiere
11:00 AM
2026 Sparknify Human vs. AI Film Premiere
11:00 AM
Endeavor - Encontro de Founders Brasileiros na Bay Area
11:00 AM
Monad Metropolis Hacker House: SF
$250,000 in prizes. Top VC speakers. Networking. What do you get when you pack a city's worth of builders into one hackathon? A Metropolis! What is Metropolis? Metropolis is Monad's flagship six-week global hackathon, bringing builders together to design, ship, and scale the…
1:00 PM
Intensity & Serenity Screening Session @ Human vs. AI Film Premiere
A journey into the forces that erupt within us and the stillness that allows us to regain control The Intensity & Serenity Screening Session brings together films shaped by emotional rage and restraint.
2:00 PM
Robotics & World Models Reading Club 30: Interaction World Models: Learning Physical Priors for Robot Manipulation. SF 9/26
Robotics & World Models Reading Club 30: What Scale Does Not Fix: Representation and Architecture in Robot Manipulation. SF 9/26 A high-signal reading group for AI researchers & builders pushing the frontiers of robotic world models, WAMs, and embodied intelligence.
2:00 PM
Taiwan Demo Day @ Taiwan Tech Summit 2026
3:00 PM
Run AI On Your Local Machine And Save $$
매달 API 비용 보면서 "이거 그냥 로컬에서 돌리면 안 되나" 생각해본 적 있으신가요. 이번 모임에서 그 답을 찾아봅니다. 로컬 LLM 세팅부터 비용 절감 팁, 그리고 클라우드 없이 어디까지 가능한지까지. 이제 막 관심 생긴 분도, 이미 이것저것 만져본 분도 가져갈 게 있을 겁니다. Talk by 황민하 박사 (Microsoft) (30분) Part 1. 어떤 로컬 모델을 골라야 하나: 찾는 법과 판단 기준 Part 2. 모델 타입에서 앱 아키텍처까지 Part 3.
3:00 PM
Po-Shen Loh | Raise A Thought Full Generation in the Age of AI | Santa Clara, CA
3:00 PM
Love & Hate Screening Session @ Human vs. AI Film Premiere
A journey through the bonds that unite us and the wounds that divide us The Love & Hate Screening Session explores cinema’s power to create closeness, affection, empathy, discomfort, and emotional resistance.
3:00 PM
穿越 AI 热潮：投资机会 × 税务策略 × 硅谷私享晚宴
4:00 PM
Inside China's AI rush w/ Afra Wang
4:00 PM
Bayview Happy Hour Cleanup
Join the Civic Joy Fund, Refuse Refuse, SF Public Works, and the Bayview community for a friendly neighborhood clean
4:00 PM
Women Who Love Tech/AI + Matcha!
5:00 PM
Desire & Disgust Screening Session @ Human vs. AI Film Premiere
Note: You will need to purchase your ticket and select your seat directly through the Sparknify website. Registration on Luma alone does not provide admission to the theater.
6:30 PM
Free Open Workshop — Build Your Idea into an AI App
7:00 PM
Po-Shen Loh | Raise A Thought Full Generation in the Age of AI | Los Altos, CA
7:00 PM
AI Executive Dinner
7:00 PM
C9 Kickoff Dinner
7:30 PM
Earth, Wind and Founders
Sunday, September 27
4:00 AM
OpenAI Codex Masterclass: From Prompting to Agentic Workflows
Click to join: https://luma.com/join/g-NFKmuFKnROzlGnE OpenAI Codex Masterclass: From Prompting to Agentic Workflows Most people use AI in a simple loop: ask a question, get an answer, then ask another question. But that is only a small part of what these tools can do.
8:00 AM
IB Code on Court: 3v3 Basketball Tournament | OTW26 🏀💚
8:30 AM
Founders Run and Recovery
Run. Recover. Connect. Join Corgi x Amity Ventures for a ~5K founders run through San Francisco, starting at Corgi Cafe on Claude Ln and finishing at our Dogpatch Corgi Cafe. We’ll run along the waterfront near Oracle Park and down Terry A.
9:00 AM
Sunday Founder Rides: Low-Gear, High-Connection
9:00 AM
Technology, AI and Addictive Behaviors: Can They Be Treated?
Click to join: https://luma.com/join/g-7PRSFoICSQJyXvG Technology is becoming impossible to ignore, especially for younger generations. From social media and gaming platforms to increasingly personalized AI systems, many people now report difficulty disconnecting, concentrating…
9:30 AM
Cross-Border Founders Hike
10:00 AM
Berkeley x DeepMind Hackathon: Build. Ship. Win up to $5M in Seed Funding*
10:00 AM
HARD RESET PRESENTS: AN ARCHITECTURAL TOUR OF NORTH BEACH
10:00 AM
AI Executive Summit
10:00 AM
ITCHATHON - Solve actual problems
"The way to get startup ideas is not to try to think of startup ideas. It's to look for problems, preferably problems you have yourself." Paul Graham We run the ITCH panel discussion, where we sit down with business owners and industry experts to discover problems worth solving.…
12:00 PM
The Orange Box @ Giants vs Dodgers ⚾️
12:00 PM
The AI × Bio Cookout
2:00 PM
Deep Tech & Robotics Underground: Founder & Builder Meetup
Join us for an intimate afternoon of cutting-edge hardware, robotics, and deep tech networking in a true piece of Silicon Valley history — the very house where Mark Zuckerberg and the early Facebook team stayed during their founding days in Los Altos.
2:00 PM
Pace AI Picnic 🟡
Sunday Picnic, Halfway Between the Labs Well, “pace the frontier” is having a week. What started with more than a thousand people across the labs has become a very public conversation about how fast the frontier should move, how labs can coordinate, and whether countries can…
2:00 PM
Preparing for an AI-Powered Future with De Kai Wu | The AI Collective Tri-Valley
2:00 PM
A Conversation with Aamir Ibrahim
2:00 PM
Agora Series: Wisdom in the Age of AI
Apollo Innovation Commons with Wisdom Exchange We have gotten very good at building intelligence and remained fairly bad at cultivating wisdom. The gap between the two is arguably the defining problem of this decade.
3:00 PM
Top AI Researchers Roundtable & BBQ Party in Los Altos Hills
4:00 PM
media theory reading circle
SECOND WEEK - (16 August 2026) This week we will be reading the first three chapters of Neil Postman's Amusing Ourselves to Death.(https://ia601905.us.archive.org/32/items/Various_PDFs/NeilPostman-AmusingOurselvesToDeath.pdf). Read: 1.
5:00 PM
AI x Solana
7:00 PM
Founder Board Game Night @ Chorus
Join us for a Founder Board Game Night @ the Chorus Belvedere Room - a luxury rooftop space on the 28th floor with sweeping views of San Francisco! An evening bringing together founders and fellow residents over good food, beautiful scenery, and a little friendly competition.…