- Libraries
- PEFT
How to use jacob-ml/Jacob-2-4B with PEFT:
from peft import PeftModel
from transformers import AutoModelForCausalLM
base_model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3.5-4B")
model = PeftModel.from_pretrained(base_model, "jacob-ml/Jacob-2-4B") - Transformers
How to use jacob-ml/Jacob-2-4B with Transformers:
# Use a pipeline as a high-level helper
from transformers import pipeline
pipe = pipeline("text-generation", model="jacob-ml/Jacob-2-4B")
messages = [
{
"role": "user",
"content": [
{"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"},
{"type": "text", "text": "What animal is on the candy?"}
]
},
]
pipe(text=messages) # pip install -U transformers accelerate
# Load model directly
from transformers import AutoProcessor, AutoModelForMultimodalLM
processor = AutoProcessor.from_pretrained("jacob-ml/Jacob-2-4B")
model = AutoModelForMultimodalLM.from_pretrained("jacob-ml/Jacob-2-4B", device_map="auto")
messages = [
{
"role": "user",
"content": [
{"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"},
{"type": "text", "text": "What animal is on the candy?"}
]
},
]
inputs = processor.apply_chat_template(
messages,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device)
outputs = model.generate(**inputs, max_new_tokens=256)
print(processor.decode(outputs[0][inputs["input_ids"].shape[-1]:])) - Notebooks
- Google Colab
- Kaggle
- Local Apps Settings
- llama.cpp
How to use jacob-ml/Jacob-2-4B 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 jacob-ml/Jacob-2-4B:Q8_0
# Run inference directly in the terminal:
llama cli -hf jacob-ml/Jacob-2-4B:Q8_0
Install from WinGet (Windows)
winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama serve -hf jacob-ml/Jacob-2-4B:Q8_0
# Run inference directly in the terminal:
llama cli -hf jacob-ml/Jacob-2-4B:Q8_0
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 jacob-ml/Jacob-2-4B:Q8_0
# Run inference directly in the terminal:
./llama-cli -hf jacob-ml/Jacob-2-4B:Q8_0
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 jacob-ml/Jacob-2-4B:Q8_0
# Run inference directly in the terminal:
./build/bin/llama-cli -hf jacob-ml/Jacob-2-4B:Q8_0
Use Docker
docker model run hf.co/jacob-ml/Jacob-2-4B:Q8_0
- LM Studio
- Jan
- vLLM
How to use jacob-ml/Jacob-2-4B with vLLM:
Install from pip and serve model
# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "jacob-ml/Jacob-2-4B"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "jacob-ml/Jacob-2-4B",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'Use Docker
docker model run hf.co/jacob-ml/Jacob-2-4B:Q8_0
- SGLang
How to use jacob-ml/Jacob-2-4B 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 "jacob-ml/Jacob-2-4B" \
--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": "jacob-ml/Jacob-2-4B",
"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 "jacob-ml/Jacob-2-4B" \
--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": "jacob-ml/Jacob-2-4B",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}' - Ollama
How to use jacob-ml/Jacob-2-4B with Ollama:
ollama run hf.co/jacob-ml/Jacob-2-4B:Q8_0
- Unsloth Desktop
- Pi
How to use jacob-ml/Jacob-2-4B with Pi:
Start the llama.cpp server
# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama serve -hf jacob-ml/Jacob-2-4B:Q8_0
Configure the model in Pi
# Install Pi:
npm install -g @earendil-works/pi-coding-agent
# Add to ~/.pi/agent/models.json:
{
"providers": {
"llama-cpp": {
"baseUrl": "http://localhost:8080/v1",
"api": "openai-completions",
"apiKey": "none",
"models": [
{
"id": "jacob-ml/Jacob-2-4B:Q8_0"
}
]
}
}
}Run Pi
# Start Pi in your project directory:
pi
- Docker Model Runner
How to use jacob-ml/Jacob-2-4B with Docker Model Runner:
docker model run hf.co/jacob-ml/Jacob-2-4B:Q8_0
- Lemonade
How to use jacob-ml/Jacob-2-4B with Lemonade:
Pull the model
# Download Lemonade from https://lemonade-server.ai/
lemonade pull jacob-ml/Jacob-2-4B:Q8_0
Run and chat with the model
lemonade run user.Jacob-2-4B-Q8_0
List all available models
lemonade list
- Hermes Agent
How to use jacob-ml/Jacob-2-4B with Hermes Agent:
Start the llama.cpp server
# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama serve -hf jacob-ml/Jacob-2-4B:Q8_0
Configure Hermes
# Install Hermes:
curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash
hermes setup
# Point Hermes at the local server:
hermes config set model.provider custom
hermes config set model.base_url http://127.0.0.1:8080/v1
hermes config set model.default jacob-ml/Jacob-2-4B:Q8_0
Run Hermes
hermes
- Atomic Chat
- OpenClaw
How to use jacob-ml/Jacob-2-4B with OpenClaw:
Start the llama.cpp server
# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama serve -hf jacob-ml/Jacob-2-4B:Q8_0
Configure OpenClaw
# Install OpenClaw:
npm install -g openclaw@latest
# Register the local server and set it as the default model:
openclaw onboard --non-interactive --mode local \
--auth-choice custom-api-key \
--custom-base-url http://127.0.0.1:8080/v1 \
--custom-model-id "jacob-ml/Jacob-2-4B:Q8_0" \
--custom-provider-id llama-cpp \
--custom-compatibility openai \
--custom-text-input \
--accept-risk \
--skip-health
Run OpenClaw
openclaw agent --local --agent main --message "Hello from Hugging Face"
