AI Tinkerers × Kolektyw3September 21–27, 2026
Part of Love, LLMs and Robots
One week of learning how to train small, specialised models. Then 46 hours to prove it works.
Mon 21 – Thu 24 Sep
A full week of events
Four evenings of workshops and meetups on training small models, at Kolektyw3.
Fri 25 – Sun 27 Sep
46-hour hackathon
Teams take an open Polish model to the matura and get scored on it.
01·The week
Warsaw Model Trainers is a full week of events in one place, run by AI Tinkerers and Kolektyw3. Monday to Thursday you learn how small models are actually trained — evening workshops and meetups with people who do it for a living. From Friday evening you do it yourself.
We work with models up to a few gigabytes, including the Polish Bielik and PLLuM. That scale lets anyone test their skills — no background in programming or model training required, and no heavy hardware either.
Working on frontier models is one thing. The future is small, custom models: cheaper, and specialised in your field. All of us have to learn to train them for our own needs. That is what this hackathon is about.
02·The task
Every team gets the same exam: matura-style questions generated from Polish Wikipedia, graded automatically, scored in points. You pick one of two ways to attack it. One board, everyone on it, prizes per track.
Track 01 · Harness
The model is the student. You build how it takes the exam: Polish Wikipedia to look things up in, a calculator it can call, five attempts and a vote, a second pass before the answer goes in. Not one weight changes — and the score still climbs.
Prompts and glue code. A laptop is enough.
Scored on: matura points.
The answering model has to be open — Bielik, PLLuM or another from the allowed list.
Track 02 · Fine-tuning
Take an open model that fits in a few gigabytes and tune it on data you build yourself — from Polish Wikipedia, from generation, from whatever works. Two size classes, so a 4 GB model competes against 4 GB models.
You get GPU credits. You leave with a model you trained.
Scored on: matura points, plus the gain over the untouched base model.
Size classes are indicative — roughly up to 4 GB and up to 8 GB; final caps in the rules.
What's a harness? Everything around the model that isn't the model — retrieval, tools, prompts, checking loops. Most AI products you use are a harness around somebody else's model. Here that work gets a score.
03·The plan
The week and the hackathon both run at Kolektyw3, Koszykowa 54. Come for the whole week or drop in for a single evening — the hackathon is open to anyone who shows up on Friday.
Love, LLMs and Robots runs September 21–27, 2026 — this hackathon and Alien Bazaar, at two venues.
See the weekWeek · learn
Weekend · build
Warsaw Model Trainers, with JetBrains and Quesma.
A robotics hackathon runs in parallel at Hacker Bloc, Kosiarzy 21B: teams build and program robots all weekend.
Alien Bazaar46 hours after kick-off, every team shows what its model can do.
04·Experts
Workshop leads, mentors and judges — around all week, on the floor during the hackathon.
05·Partners
Sep 21–27, 2026 · Koszykowa 54, Warsaw
