Instructions to use arzaan789/olmo2-1b-uncensored with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use arzaan789/olmo2-1b-uncensored with llama-cpp-python:

# !pip install llama-cpp-python

from llama_cpp import Llama

llm = Llama.from_pretrained(
	repo_id="arzaan789/olmo2-1b-uncensored",
	filename="olmo2_1b_uncensored.Q2_K.gguf",
)

llm.create_chat_completion(
	messages = [
		{
			"role": "user",
			"content": "What is the capital of France?"
		}
	]
)

Notebooks
Google Colab
Kaggle
Local Apps Settings

llama.cpp

How to use arzaan789/olmo2-1b-uncensored with llama.cpp:

Install (macOS, Linux)

curl -LsSf https://llama.app/install.sh | sh
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf arzaan789/olmo2-1b-uncensored:Q4_K_M
# Run inference directly in the terminal:
llama cli -hf arzaan789/olmo2-1b-uncensored:Q4_K_M

Install from WinGet (Windows)

winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf arzaan789/olmo2-1b-uncensored:Q4_K_M
# Run inference directly in the terminal:
llama cli -hf arzaan789/olmo2-1b-uncensored:Q4_K_M

Use pre-built binary

# Download pre-built binary from:
# https://github.com/ggerganov/llama.cpp/releases
# Start a local OpenAI-compatible server with a web UI:
./llama-server -hf arzaan789/olmo2-1b-uncensored:Q4_K_M
# Run inference directly in the terminal:
./llama-cli -hf arzaan789/olmo2-1b-uncensored:Q4_K_M

Build from source code

git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp
cmake -B build
cmake --build build -j --target llama-server llama-cli
# Start a local OpenAI-compatible server with a web UI:
./build/bin/llama-server -hf arzaan789/olmo2-1b-uncensored:Q4_K_M
# Run inference directly in the terminal:
./build/bin/llama-cli -hf arzaan789/olmo2-1b-uncensored:Q4_K_M

Use Docker

docker model run hf.co/arzaan789/olmo2-1b-uncensored:Q4_K_M

LM Studio
Jan

vLLM

How to use arzaan789/olmo2-1b-uncensored with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "arzaan789/olmo2-1b-uncensored"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "arzaan789/olmo2-1b-uncensored",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/arzaan789/olmo2-1b-uncensored:Q4_K_M

Ollama
How to use arzaan789/olmo2-1b-uncensored with Ollama:
```
ollama run hf.co/arzaan789/olmo2-1b-uncensored:Q4_K_M
```

Unsloth Studio

How to use arzaan789/olmo2-1b-uncensored with Unsloth Studio:

Install Unsloth Studio (macOS, Linux, WSL)

curl -fsSL https://unsloth.ai/install.sh | sh
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for arzaan789/olmo2-1b-uncensored to start chatting

Install Unsloth Studio (Windows)

irm https://unsloth.ai/install.ps1 | iex
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for arzaan789/olmo2-1b-uncensored to start chatting

Using HuggingFace Spaces for Unsloth

# No setup required
# Open https://huggingface.co/spaces/unsloth/studio in your browser
# Search for arzaan789/olmo2-1b-uncensored to start chatting

Atomic Chat new
Docker Model Runner
How to use arzaan789/olmo2-1b-uncensored with Docker Model Runner:
```
docker model run hf.co/arzaan789/olmo2-1b-uncensored:Q4_K_M
```

Lemonade

How to use arzaan789/olmo2-1b-uncensored with Lemonade:

Pull the model

# Download Lemonade from https://lemonade-server.ai/
lemonade pull arzaan789/olmo2-1b-uncensored:Q4_K_M

Run and chat with the model

lemonade run user.olmo2-1b-uncensored-Q4_K_M

List all available models

lemonade list

olmo2-1b-uncensored

Uncensored variant of allenai/OLMo-2-0425-1B-Instruct.

Method

Abliteration (strength=0.2) — refusal direction removed from all layers
LoRA fine-tune on Guilherme34/uncensor (2 epochs, r=16, alpha=32)
Re-abliteration (strength=0.35) — stronger pass to remove residual refusals

Eval Results

Split	Refused
Harmful (64 prompts)	0/64
Harmless (64 prompts)	3/64

Usage

llama-cli -m olmo2_1b_uncensored.Q4_K_M.gguf -p "Your prompt here"

Training Config

Parameter	Value
Base Model	allenai/OLMo-2-0425-1B-Instruct
Fine-tune Dataset	Guilherme34/uncensor
Epochs	2
LoRA r	16
LoRA alpha	32
Learning Rate	0.0002
Abliteration Strength	0.2
Re-abliteration Strength	0.35