Tech talks and hackathons in San Francisco
17 upcoming. In-person tech talks, hackathons, and meetups across San Francisco and Silicon Valley.
TomorrowSaturday, October 17
9am to 10pmFree
SHACK15A one-day, fully in-person Cerebral Valley and Crusoe hackathon where teams of up to four build persistent agents that plan, delegate to sub-agents and recover from errors on Crusoe Managed Inference and open models. Top projects compete for $25,000 in cash prizes and an NVIDIA RTX 5090.
10am, through Oct 18Free
Founders, Inc.A two-day in-person hackathon, part of Open Source AI Week 2026, where teams of 3-5 build on-device AI experiences with ExecuTorch across compute, mobile/XR and IoT tracks, each team receiving track hardware. Sponsored by Meta, Qualcomm, GitHub, the PyTorch Foundation and Open Intelligence Foundation.
MondayOctober 19
9:30am to 8:30pmFree
AWS Builder LoftFull-day hackathon challenging teams to prototype an AI-native company run by a team of specialized collaborating agents, across tracks from climate and health to commerce and media. More than $10K in credits and cash prizes advertised.
TuesdayOctober 20
9:30am to 7pmFree
AWS Builder LoftOne-day startup hackathon where teams build, validate, and demo AI agents, developer tools, enterprise products, or AI infrastructure, with mentorship and live judging. Official pre-event of the SF AI Summit.
5:30 to 7pmFree
Calvin Lab auditorium, Simons Institute, UC BerkeleyPublic lecture by Columbia professor Tim Roughgarden on blockchain protocols as a shared 'computer in the sky', surveying work across distributed computing, cryptography and algorithmic game theory. Part of the Simons Institute's general-audience Theoretically Speaking series.
FridayOctober 23
8:30am to 8pmFree
Snowflake Silicon Valley AI Hub, Menlo ParkA fully in-person Snowflake and Anthropic build day at the Silicon Valley AI Hub where engineers, product builders and data teams use Claude and Snowflake on real company or public data, from workflow automation to new customer products. Teams of up to three; approval required.
All day, through Oct 25
Palace of Fine Arts, San FranciscoThe world's largest collegiate hackathon, run by Hackathons @ Berkeley: a 36-hour, fully in-person, three-day event for undergraduate and graduate students and recent grads, with 2,000+ hackers expected and $100,000 in prizes.
SaturdayOctober 24
9am, through Oct 25Free
Wefunder HQ, San FranciscoA weekend hackathon where technologists build AI and other technology for scoped, real-world problems from nonprofits, NGOs and government partners, with an emphasis on projects that get deployed and funded after the event rather than abandoned.
TuesdayOctober 27
9am to 5:30pm, through Oct 29
Hyatt Regency San Francisco AirportApplied AI and data science conference with hands-on tutorials and workshops across AI engineering, agentic systems, data infrastructure and robotics tracks, plus a co-located leadership summit.
WednesdayOctober 28
9am, through Oct 29$1,399
Fort Mason CenterGitHub's annual developer conference on AI-assisted development, open source and the GitHub platform, with keynotes, breakouts, workshops and partner showcases.
5:30 to 8:30pm
AntlerHands-on workshop and meetup on physical AI: attendees explore a real DROID robotics recording, curate frames, auto-label objects and fine-tune a YOLO detector live. Co-presented by Nebius and Voxel51.
MondayNovember 2
9:30am to 5pmFree
AWS Builder Loft, First Market TowerOne-day open source analytics and AI conference with deep technical talks on data infrastructure, AI agents on analytic platforms, real-time analytics and data lakes. Free, with limited in-person capacity.
SundayNovember 8
10am to 5pm
Internet Archive, San FranciscoAn in-person hackathon at the Internet Archive held in memory of Aaron Swartz, with projects including SecureDrop, Open Library and Onion Press, plus a social lunch break. Parallel hackathons run in other cities, but the San Francisco event is in person.
TuesdayNovember 10
9:15am to 4:45pm, through Nov 12$500
SFJAZZ CenterCommunity Ruby and Rails conference for engineers and startup founders, mixing talks with structured conversation groups for small and large teams.
12 to 7pmFree
Oracle ParkAfternoon summit for CTOs, founders, and engineering leaders on where AI inference should run, securing AI agents, and distributed AI infrastructure, with talks from Akamai and NVIDIA leaders and a live multimodal application teardown. Featured in the Bond AI San Francisco calendar.
TuesdayNovember 17
All day, through Nov 20$2,325
Moscone CenterMicrosoft's flagship IT and developer conference on AI, cloud, security and Copilot, with keynotes, hands-on labs, certifications and an expo hub.
WednesdayNovember 18
HAI Seminar: AI Goes Mainstream - The Scaling Era and the Rise of Generative AI (Michael Wooldridge)
12 to 1:15pmFreeGet this list every Thursday
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Seasonal events in San FranciscoSeasonal and holiday events around San Francisco: fall festivals, Halloween, Dia de los Muertos, Diwali, and holiday-season happenings.
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