---
license: mit
task_categories:
- text-generation
tags:
- arc-agi
- re-arc
- test-time-training
- synthetic-data
pretty_name: ARC Tiny Transformer corpus and evaluation candidates
---

# ARC Tiny Transformer data

Data and vote-level artifacts for [N8python/arc-tiny-transformer](https://github.com/N8python/arc-tiny-transformer).

## Corpus

`corpus/documents_3k_per_task.jsonl.zst` is the exact pretraining corpus:

- 1,200,000 JSONL documents;
- 3,000 documents for each of 400 RE-ARC generator families;
- 3,401,127,124 ARC tokens;
- 10,413,648,837 uncompressed bytes;
- uncompressed SHA-256 `5d1336f8d6f45358a377af2e3fd05d43c4bfe91621b0c6a44c53dad0e34ca430`.

Each record contains token IDs and metadata for task ID, sampled difficulty band, demonstration count, rejection statistics, and generation seed. The fixed vocabulary and sampler are in the GitHub repository. `manifests/` contains the complete task-level corpus provenance.

## Evaluation artifacts

`artifacts/` contains the full 128-candidate records for:

- the frozen 50M model;
- TTT replicas seeded 57, 58, and 59;
- the 7M TTT run.

These files are sufficient to recompute rank-1, raw-frequency top-2, historical hierarchical top-2, oracle accuracy, candidate-scaling curves, and multi-replica ensembles without rerunning model inference.

`viewer/data/` contains the compact per-query data backing the browser-based 384-candidate explorer.

## Licensing note

Release code and metadata are MIT licensed. The corpus is procedurally generated with the pinned [RE-ARC](https://github.com/michaelhodel/re-arc) generators/verifiers; ARC-AGI task files are not duplicated here. Users should also review the upstream RE-ARC and ARC-AGI licenses for their use case.