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layout: default
title: Stage 1 Dataset
---

# Stage 1 Dataset

The Stage 1 dataset is the first RealMythos release artifact.

## Dataset Repository

[RealMythos/RealMythosReasoning](https://huggingface.co/datasets/RealMythos/RealMythosReasoning)

## Companion Materials

| Resource | Link |
|---|---|
| GitHub repository | [tszdanger/RealMythos](https://github.com/tszdanger/RealMythos) |
| Technical report | [Latest draft on Google Drive](https://drive.google.com/drive/folders/15QTlPNgEjfR-rOYg1zI0YCjT5VL9EfUi?usp=sharing) |
| Reproducibility pipeline | [Stage 1 pipeline](../stage1-dataset/pipeline/) |

The Hugging Face repository hosts the dataset files and dataset card. The GitHub repository hosts release documentation, responsible-use notes, and reproducibility-oriented pipeline code. The technical report draft is hosted through Google Drive during pre-arXiv iteration.

The Stage 1 dataset is also the training dataset for the first public Stage 2 model release, [RealMythos/pocwriter-v1](https://huggingface.co/RealMythos/pocwriter-v1).

## Research Lineage

This release is influenced by two earlier lines of work: **Reef: A Framework for Collecting Real-World Vulnerabilities and Fixes**, our ASE 2023 work on vulnerability/fix collection, and **API-guided Dataset Synthesis to Finetune Large Code Models**, our OOPSLA 2025 work on structured code-data synthesis. RealMythos extends these ideas toward reasoning-data construction, PoC-aware evaluation, and reproducible release infrastructure.

The RealMythos technical report will also be made available as an arXiv preprint; the arXiv link will be added once available.

## Release Contents

The Stage 1 release includes:

- SFT-ready reasoning data
- Case-level metadata and quality signals
- Dataset schema and example records
- Dataset card and responsible-use notes
- Technical report draft metadata
- Versioned manifests and checksums
- Training foundation for the Stage 2 `pocwriter-v1` model

## GitHub Materials

The GitHub repository hosts:

- Technical report draft link metadata
- Reproducibility pipeline code
- Responsible-use documentation
- Release policy
- Author and maintainer metadata