Instructions to use allenai/Dense_1b_130B with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use allenai/Dense_1b_130B with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="allenai/Dense_1b_130B", trust_remote_code=True)
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoModelForCausalLM
model = AutoModelForCausalLM.from_pretrained("allenai/Dense_1b_130B", trust_remote_code=True, dtype="auto")

Notebooks
Google Colab
Kaggle
Local Apps

vLLM

How to use allenai/Dense_1b_130B with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "allenai/Dense_1b_130B"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "allenai/Dense_1b_130B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/allenai/Dense_1b_130B

SGLang

How to use allenai/Dense_1b_130B with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "allenai/Dense_1b_130B" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "allenai/Dense_1b_130B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "allenai/Dense_1b_130B" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "allenai/Dense_1b_130B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use allenai/Dense_1b_130B with Docker Model Runner:
```
docker model run hf.co/allenai/Dense_1b_130B
```

Dense_1b_130B / README.md

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	---
	license: other
	language:
	- en
	library_name: transformers
	pipeline_tag: text-generation
	tags:
	- dense
	- baseline
	- ablation
	- memory-matched
	datasets:
	- allenai/OLMoE-mix-0924
	---

	# Dense_1b_130B

	An active-parameter-matched dense baseline released alongside [EMO: Pretraining Mixture of Experts for Emergent Modularity](https://arxiv.org/abs/2605.06663) — referred to as "Dense @ 8" in Figure 1 of the paper. Not midtrained.

	1B parameter dense decoder-only Transformer (no MoE) pretrained from scratch on 130B tokens of the OLMoE pretraining mix. Provides an active-parameter-matched comparison point against 8-expert subsets carved out of the larger 1B/14B EMO models.

	## Usage

	```python
	from transformers import AutoModelForCausalLM, AutoTokenizer

	model_id = "allenai/Dense_1b_130B"
	model = AutoModelForCausalLM.from_pretrained(model_id, trust_remote_code=True)
	tokenizer = AutoTokenizer.from_pretrained(model_id, trust_remote_code=True)

	inputs = tokenizer(["Language modeling is "], return_tensors="pt", return_token_type_ids=False)
	out = model.generate(**inputs, max_new_tokens=100, do_sample=True, temperature=1.0, top_p=0.7)
	print(tokenizer.batch_decode(out, skip_special_tokens=True)[0])
	```

	## Citation

	```bibtex
	@article{wang2026emo,
	title = {EMO: Pretraining Mixture of Experts for Emergent Modularity},
	author = {Wang, Ryan and Bhagia, Akshita and Min, Sewon},
	year = {2026},
	url = {https://arxiv.org/abs/2605.06663}
	}
	```

	## Links

	- Paper: https://arxiv.org/abs/2605.06663
	- Code: https://github.com/allenai/EMO