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CoreWeave Hacks: Agent Loops Hackathon with Weights & Biases and AGI House

CHWeights & Biases
view event ↗
dateSep 12 – Sep 13, 2026
location400 Alabama St ste 202
prize$20k+ prize pool
priceTBA
formatIn-Person
organiserWeights & Biases

about this event

About the event

Come plug in and supercharge at our premiere CoreWeave hackathon! If you've had an idea for an autonomous loop that's been burning away at you, this heavily-resourced hack is for you to make it happen. Experience everything you've come to love about Weights & Biases WeaveHacks— this time with the full CoreWeave stack (Weave, ARIA, marimo, and much more).

Join us at our SF office (this is an in-person event) to have the most fun building loops you'll have this year. This round is all about the loop: building agents that cycle through reasoning and action, catching their own mistakes, and pushing towards more powerful results at each pass.

Agent capabilities have advanced enormously over the last year — even by their own doing: better memory systems, new forms of RL and fine-tuning, dynamic tool creation, and self-improving loops. This time we observe, evaluate, track, document, and self-improve agent iterations while we play with a robot dog and humanoid!

Hackers get Fully Connected

Attendees have the chance to attend our Fully Connected conference September 29-October 1 (each ticket ~$1k in value), where a final CoreWeave Hacks award will be presented for the "Most Production-Ready" submission.

Criteria for any non-winning attendee to get a ticket will be announced at the event. Once building starts, find out more from a CoreWeave representative.

The Best Loop Design winners on 9/13 get tickets and stage time at Fully Connected.

The winning team gets a stage demo on the final day, presenting their project in front of AI leadership. Build like it matters; the work can carry straight from the hackathon floor onto that stage!

You will have a second chance to win 2 weeks after CoreWeave Hacks, at our Fully Connected conference!

We bring

A killer office with ultrawide monitors and standing desks

Great food & drinks (breakfast, lunch, and dinner)

Expert judges

A humanoid that hands out stickers and dancing robot dog

The full CoreWeave SaaS stack for agents

A chance to attend Fully Connected — and a stage demo for the winners

A media team capturing the event (winner video, coverage, and interviews)

Whimsy

You bring

Your ideas

A readiness to actually show up & crank out code

Good vibes

Will you build a dojo where agents train themselves? A hall of mirrors where agents grade their own reflections? A memory palace agents keep rewriting? A forge where agents hammer out their own tools? A loop that learns from its own scars? A colony of agents keeping each other honest? However you've been dreaming about closing the loop on self-improving agents — no more excuses. This is your sign to build.

If you don't know us: CoreWeave Hacks is our AI agent hackathon series (formerly "WeaveHacks"). Our first ones drew over 200 builders from across the country to network, build, and deploy agents. Due to popular demand, the series continues with new features.

What to expect

$20k+ in prizes | Robot dog for Best Loop Design | F1 tickets for Most Production-Ready

Robot dog and humanoid

Tons of food, snacks, drinks

A chance to attend Fully Connected; a stage demo there for the winners

Weights & Biases onsite, plus additional sponsors with hands-on help integrating their tools — only a few, no hours-long presentations. We're here to hack.

Expert judges who offer specific feedback

A media team documenting the event

Schedule

Day 1 (Saturday)

9:00 AM — Doors open & breakfast

10:30 AM — Kickoff & initial presentation

11:15 AM — Hacking starts

6:30 PM — Dinner

9:00 PM — Office closes

Day 2 (Sunday)

9:00 AM — Doors open, snacks

1:00 PM — Submissions due

1:00 PM — Lunch

1:30 PM — Judging begins

3:30 PM — Project presentations

4:30 PM — Awards ceremony

Sponsors

Your host: CoreWeave

Weights & Biases — the full agent stack: Models, Weave, Sandboxes, ARIA.

Marimo notebooks — modern Python notebooks with free cloud GPUs in molab

Strategic Sponsor: AGI House

Additional Sponsors Announced Soon.

Judges

Emmanuel Turlay | Weave team, Weights & Biases

Lorenzo Porras | Weights & Biases

Julia Rose | ARIA team, Weights & Biases

Konstantin Taletskiy | marimo

Mo Tiwari | Google DeepMind

AGI House

5 additional judges announced soon!

Applying to participate

Apply on Luma. We prioritize hackers who have some kind of project they've built and can point to (it doesn't need to be polished at all) — GitHub or Devpost links are fine. No specific experience required.

Given the WeaveHacks 4 demand, we will be selective with a cap at 200. We'll likely hit max capacity before the event, so apply early, and mark yourself going / not going as soon as you know so you're not holding a slot. Please do what you can to have your entire team (all members) sign up ASAP, as we likely will not have space for new team members to join at the door.

What's holding you back? This is your sign to build.

schedule

Sat 12 Sep9:00 AM - 9:00 PM PT

Hackathon Day 1

Doors open & breakfast at 9:00 AM, kickoff & initial presentation at 10:30 AM, hacking starts at 11:15 AM, dinner at 6:30 PM, office closes at 9:00 PM.

◍ 400 Alabama St ste 202
Sun 13 Sep9:00 AM - 5:00 PM PT

Hackathon Day 2

Doors open & snacks at 9:00 AM, submissions due at 1:00 PM, lunch at 1:00 PM, judging begins at 1:30 PM, project presentations at 3:30 PM, awards ceremony at 4:30 PM.

◍ 400 Alabama St ste 202

prizes

Prize places and values for CoreWeave Hacks: Agent Loops Hackathon with Weights & Biases and AGI House
PlacePrizeValue
Best Loop DesignRobot dog, tickets and stage time at Fully Connected conferenceRobot dog
Most Production-ReadyF1 tickets and attendance at Fully Connected conference (each ticket ~$1k in value)F1 tickets
CoreWeave Hacks: Agent Loops Hackathon with Weights & Biases and AGI HouseSep 12 – Sep 13, 2026 · 400 Alabama St ste 202 · $20k+ prize pool
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