44% on ARC-AGI-1: trained from scratch for just ~$0.67

• Takes 2hrs on a 5090
• Uses a standard tranformer
• 75M parameters

This is one of the best non-LLM scores in the world today (if not THE best).
It is also the cheapest, by far, at that performance.

Details: Blog, X thread

New score

Performance: 44% on ARC-1 public eval
Total compute cost: ~$0.67 (2hrs on a 5090 rented on vast.ai)

Old score

Performance: 27.5% on ARC-1 public eval
Total Compute cost: $1.8 (<3hrs on an A100 rented on Google Colab)

Deployment

1. Rent a 5090, ensure cuda >12.8, ideally >13.0
2. Create a virtual environment and install torch, numpy, numba, matplotlib and flash-attn
3. Download and build the dataset
4. (optional) delete raw data, solutions file and dataset scripts to prove no leakage
5. Run the training and inference script

This script takes care of (3)-(5):

git clone https://github.com/mvakde/mdlARC.git

# download and build the datasets
cd mdlARC/dataset_building_scripts
python download_and_group.py
python build_datasets.py arc1 --add-conceptarc --with-filtered
cd ..

# prove no data leakage (optional, uncomment to run)
# rm -r assets_tmp # deletes raw data
# rm assets/solutions.json # deletes solutions file
# rm -r dataset_building_scripts # deletes dataset related files

#run the training + inference script
python run_script.py high # Choose between 3 modes: low, medium, high

Note: To get the best speed, I have disabled logging loss values. Feel free to add it back

Citation

@misc{vakde2025mdlarc,
  author       = {Mithil Vakde},
  title        = {mdlARC},
  year         = {2025},
  url          = {https://github.com/mvakde/mdlARC},
}