---
task_categories:
- text-generation
language:
- en
size_categories:
- 1B<n<10B
license: odc-by
pretty_name: OLMoE Mix (August 2024)
---

# OLMoE Mix (August 2024)


<img alt="OLMoE Mix Logo." src="olmoe-mix.png" width="250px">

The following data mix was used to train OLMoE-1B-7B, a Mixture-of-Experts LLM with 1B active and 7B total parameters released in August 2024. 

The base version of OLMoE-1B-7B can be found at [this page](https://huggingface.co/OLMoE/OLMoE-1B-7B-0824), the SFT of OLMoE-1B-7B is available [here](https://huggingface.co/OLMoE/OLMoE-1B-7B-0824-SFT), and a version combining SFT and DPO is available following [this link](https://huggingface.co/OLMoE/OLMoE-1B-7B-0824-Instruct).

## Statistics
| Subset                                                       | Docs       | Bytes      | Words      | Tokens     |
|--------------------------------------------------------------|:----------:|:----------:|:----------:|:----------:|
| [DCLM Baseline 1.0](https://huggingface.co/datasets/mlfoundations/dclm-baseline-1.0) | 2.95 B     | 16.7 T     | 3.38 T     | 3.86 T     |
| [Starcoder](https://huggingface.co/datasets/bigcode/starcoderdata) | 78.7 M     | 325 B      | 63.9 B     | 101 B      |
| [peS2o](https://huggingface.co/datasets/allenai/peS2o)<br>([Dolma](https://huggingface.co/datasets/allenai/dolma)) | 38.8  M    | 268 B      | 51.3 B     | 57.2 B     |
| Algebraic Stack<br>([Proof Pile II](https://huggingface.co/datasets/EleutherAI/proof-pile-2)) | 2.83 M     | 39.3 B     | 9.6 B      | 12.6 B     |
| Arxiv<br>([RedPajama v1](https://huggingface.co/datasets/togethercomputer/RedPajama-Data-1T) <br>via [Proof Pile II](https://huggingface.co/datasets/EleutherAI/proof-pile-2)) | 1.55 M     | 88.8 B     | 23.5 B     | 21.1 B     |
| OpenWebMath<br>([Proof Pile II](https://huggingface.co/datasets/EleutherAI/proof-pile-2)) | 2.91 M     | 42.4 B     | 10.2 B     | 12.7 B     |
| En Wikipedia + <br>Wikibooks<br>([Dolma](https://huggingface.co/datasets/allenai/dolma)) | 6.17 M     | 16.2 B     | 3.16 B     | 3.69 B     |
| **Total**                                                    | **3.08 B** | **17.4 T** | **3.53 T** | **4.07 T** |

## Preprocessing

All subsets were pre-processed to remove documents with a *sequence* of 32 or more repeated *ngrams*.
- a *ngram* is a span of 1 to 13 tokens, included;
- *tokens* are obtained using the model tokenizer;
- a *sequence* is a contiguous span of repeated ngrams. 

In addition of the above, Starcoder dataset was further processed by removing any document meeting any of the following rules:
- document is from a repository with fewer than 2 stars on GitHub;
- the top most frequent word in the document constitutes over 30% of the document;
- the two most frequent words in the document constitutes over 50% of the document.

## Licensing Information

This mix is licensed under [Open Data Commons Attribution License (ODC-By) v1.0](https://opendatacommons.org/licenses/by/1-0/). By using this dataset, you are bound to licenses and Terms of Services of underlying datasets, which you can access by clicking on the links in the table above.