About Rally

Rally SF is a community for AI-first builders and operators in San Francisco. The city has the highest concentration of people building with AI in the world right now, and Rally is where they come together to swap notes on what they’re shipping, learn from each other, and find their next collaborators.

Builders Night is a Monday coworking session: two hours of focused build time, then a share-back round to close. The AI Research Circle is a technical deep-dive on a frontier topic, with recent sessions on Physical AI and agentic workflows. Building the State of the Art brings practitioners together to compare notes and walk through what they’re actually building. The speaker series brings in experts to share what they’re working on with the community.

The people who show up are technical, curious, and generous with what they know.

Sundays, we send a shortlist of the AI events worth showing up for in San Francisco that week. We post the talks from our events to YouTube so builders outside SF can stay close to the work happening here.

If you’re in SF, come to an event and subscribe to the newsletter. If you’re not in SF, subscribe to the YouTube channel. If you want to sponsor or partner with Rally, get in touch.

Rally was founded by Lee Flannery in January 2026.