---
license: apache-2.0
language:
- en
tags:
- moe
- olmo
- olmoe
co2_eq_emissions: 1
---

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

# Model Summary

> OLMoE-1B-7B-Instruct is a Mixture-of-Experts LLM with 1B active and 7B total parameters released in August 2024 (0824) that has been adapted via SFT and DPO from [OLMoE-1B-7B](https://hf.co/OLMoE/OLMoE-1B-7B-0824). It yields state-of-the-art performance among models with a similar cost (1B) and is competitive with much larger models like Llama2-13B-Chat. OLMoE is 100% open-source.

- Code: https://github.com/allenai/OLMoE
- Paper:
- Logs: https://github.com/allenai/OLMoE/blob/main/logs/olmoe-dpo-logs.txt

# Use

Install the `transformers` & `torch` libraries and run:

```python
from transformers import OlmoeForCausalLM, AutoTokenizer
import torch

DEVICE = "cuda" if torch.cuda.is_available() else "cpu"

# Load different ckpts via passing e.g. `revision=kto`
model = OlmoeForCausalLM.from_pretrained("allenai/OLMoE-1B-7B-Instruct").to(DEVICE)
tokenizer = AutoTokenizer.from_pretrained("allenai/OLMoE-1B-7B-Instruct")
message = [{"role": "user", "content": "Explain to me like I'm five what is Bitcoin."}]
inputs = tokenizer.apply_chat_template(messages, tokenize=True, add_generation_prompt=True, return_tensors="pt")
out = model.generate(**inputs, max_length=64)
print(tokenizer.decode(out[0]))
# > # Bitcoin is a digital currency that is created and held electronically. No one controls it. Bitcoins aren’t printed, like dollars or euros – they’re produced by people and businesses running computers all around the world, using software that solves mathematical
```

Branches:
- `main`: Preference tuned via DPO model of https://hf.co/OLMoE/OLMoE-1B-7B-0824-SFT (`main` branch)
- `load-balancing`: Ablation with load balancing loss during DPO starting from the `load-balancing` branch of https://hf.co/OLMoE/OLMoE-1B-7B-0824-SFT
- `non-annealed`: Ablation starting from the `non-annealed` branch of https://hf.co/OLMoE/OLMoE-1B-7B-0824-SFT which is an SFT of the pretraining checkpoint prior to annealing (branch `step1200000-tokens5033B` of https://hf.co/OLMoE/OLMoE-1B-7B-0824)
- `kto`: Ablation using KTO instead of DPO. This branch is the checkpoint after 5,000 steps with the RMS optimizer. The other `kto*` branches correspond to the other checkpoints mentioned in the paper.

# Citation

```bibtex
TODO
```