Instructions to use FritzStack/COGN-QWEN4B-4bit with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use FritzStack/COGN-QWEN4B-4bit with Transformers:

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

pipe = pipeline("text-generation", model="FritzStack/COGN-QWEN4B-4bit")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("FritzStack/COGN-QWEN4B-4bit")
model = AutoModelForCausalLM.from_pretrained("FritzStack/COGN-QWEN4B-4bit")
messages = [
    {"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.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=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use FritzStack/COGN-QWEN4B-4bit with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "FritzStack/COGN-QWEN4B-4bit"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "FritzStack/COGN-QWEN4B-4bit",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/FritzStack/COGN-QWEN4B-4bit

SGLang

How to use FritzStack/COGN-QWEN4B-4bit 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 "FritzStack/COGN-QWEN4B-4bit" \
    --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": "FritzStack/COGN-QWEN4B-4bit",
		"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 "FritzStack/COGN-QWEN4B-4bit" \
        --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": "FritzStack/COGN-QWEN4B-4bit",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Unsloth Studio

How to use FritzStack/COGN-QWEN4B-4bit 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 FritzStack/COGN-QWEN4B-4bit 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 FritzStack/COGN-QWEN4B-4bit to start chatting

Using HuggingFace Spaces for Unsloth

# No setup required
# Open https://huggingface.co/spaces/unsloth/studio in your browser
# Search for FritzStack/COGN-QWEN4B-4bit to start chatting

Load model with FastModel

pip install unsloth
from unsloth import FastModel
model, tokenizer = FastModel.from_pretrained(
    model_name="FritzStack/COGN-QWEN4B-4bit",
    max_seq_length=2048,
)

Docker Model Runner
How to use FritzStack/COGN-QWEN4B-4bit with Docker Model Runner:
```
docker model run hf.co/FritzStack/COGN-QWEN4B-4bit
```
Browse Quantizations to use this model in llama.cpp, Ollama, LM Studio, or any compatible app.


!pip install git+https://github.com/Fede-stack/TONYpy.git

from TONY.COGNITIVE import CognitivePredictor, CognitivePredictor_mlx

text = 'I keep thinking about how I messed up in college. I should have studied harder and done more with my life.'
cogn = CognitivePredictor(model_name='FritzStack/COGN-QWEN4B-4bit')
cogn.predict_cognitive_features(text)
# Output:
# Attention Bias: Negative
# Interpretation Bias: Negative
# Memory Bias: Negative
# Rumination: Brooding

Downloads last month: 2

Safetensors

Model size

4B params

Tensor type

BF16

Model tree for FritzStack/COGN-QWEN4B-4bit

Base model

Qwen/Qwen3-4B-Base

Finetuned

Qwen/Qwen3-4B

Quantized

unsloth/Qwen3-4B-unsloth-bnb-4bit

Finetuned

(258)

this model

Quantizations

1 model