October 21–22, 2026

Dates confirmed · agenda TBA

The fourth edition — now the Open Scientific Intelligence (OSI) Hackathon — runs Wednesday–Thursday, October 21–22, 2026, hybrid and worldwide. Kick-off time, mentorship blocks, and the submission deadline are still being finalized. They will be published here and announced in Slack first. Registration is open now.

Day 1 · Wed, Oct 21 · TBA

Kick-off, teaming, hacking begins

Opening session, team formation across sites and virtually, then straight into building. Times to be announced.

Day 2 · Thu, Oct 22 · TBA

Build day and final submissions

Focused development with mentors on hand, followed by the project submission deadline. Times to be announced.

After the event · TBA

Winners announced & virtual showcase

Judging wraps up, awards are announced, and featured projects are invited to present. Date to be announced.

What to Expect

Day 1: Getting Started

Day 2: Development & Presentation

Resources Available

During the event, participants will have access to:

Time Zones

All times listed are in Central Time (CT). International participants should note:

For participants at international sites, local organizers will coordinate timing and provide location-specific schedules.


Previous Edition: September 11-12, 2025

Kept here for reference while the 2026 agenda is being defined — the 2026 schedule will follow a similar shape.

9:00 AM (CT), Sept 11

Hackathon Kick-off

Kick-off (virtual video - link soon) and opening teaming event

10:00 AM (CT), Sept 11

Hacking Begins

Mentorship sessions available.

17:00 PM (CT), Sept 12

Final Submissions

Project submission deadline.

time ASAP, ~Sept 15

Post-Event Showcase

Winners Announced, Featured Projects Invited to Virtual Showcase

2025 Deadlines

Formerly the LLM Hackathon for Applications in Materials and Chemistry