README.md

---
license: mit
language:
- en
---

# Ettin Checkpoints

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
[![Paper](https://img.shields.io/badge/Paper-Arxiv-red)](https://arxiv.org/abs/2507.11412)
[![Models](https://img.shields.io/badge/🤗%20Hugging%20Face-12%20Models-blue)](https://huggingface.co/jhu-clsp)
[![GitHub](https://img.shields.io/badge/GitHub-Code-black)](https://github.com/jhu-clsp/ettin-encoder-vs-decoder)

This repository contains the raw training checkpoints for the Ettin models.  Each model contains a unique subdirectory, e.g. enc-150m for Ettin-Encoder-150m, with three subfolders for `decay`, `ext`, and `pretrain`.

These files work with Composer and contain all state needed to resume pre-training. Please see the [ModernBERT repository](https://github.com/AnswerDotAI/ModernBERT) for usage details. 


## 🔗 Related Resources

- **Models**: [Ettin Model Suite](https://huggingface.co/collections/jhu-clsp/encoders-vs-decoders-the-ettin-suite-686303e16142257eed8e6aeb) (17M-1B parameters)
- **Phase 1**: [Pre-training Data](https://huggingface.co/datasets/jhu-clsp/ettin-pretraining-data) (1.7T tokens)
- **Phase 2**: [Mid-training Data](https://huggingface.co/datasets/jhu-clsp/ettin-extension-data) (250B tokens)
- **Phase 3**: [Decay Phase Data](https://huggingface.co/datasets/jhu-clsp/ettin-decay-data) (50B tokens)
- **Training Order**: [Batch-level Data Order](https://huggingface.co/datasets/jhu-clsp/ettin-data-order)
- **Paper**: [Arxiv link](https://arxiv.org/abs/2507.11412)
- **Code**: [GitHub Repository](https://github.com/jhu-clsp/ettin-encoder-vs-decoder)

## Citation

```bibtex
@misc{weller2025seqvsseqopen,
      title={Seq vs Seq: An Open Suite of Paired Encoders and Decoders}, 
      author={Orion Weller and Kathryn Ricci and Marc Marone and Antoine Chaffin and Dawn Lawrie and Benjamin Van Durme},
      year={2025},
      eprint={2507.11412},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2507.11412}, 
}
```