Instructions to use modrill/qwen3-4b-nothink-baseline-lora-sft with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use modrill/qwen3-4b-nothink-baseline-lora-sft with Transformers:

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

pipe = pipeline("text-generation", model="modrill/qwen3-4b-nothink-baseline-lora-sft")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForMultimodalLM

tokenizer = AutoTokenizer.from_pretrained("modrill/qwen3-4b-nothink-baseline-lora-sft")
model = AutoModelForMultimodalLM.from_pretrained("modrill/qwen3-4b-nothink-baseline-lora-sft")
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 modrill/qwen3-4b-nothink-baseline-lora-sft with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "modrill/qwen3-4b-nothink-baseline-lora-sft"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "modrill/qwen3-4b-nothink-baseline-lora-sft",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/modrill/qwen3-4b-nothink-baseline-lora-sft

SGLang

How to use modrill/qwen3-4b-nothink-baseline-lora-sft 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 "modrill/qwen3-4b-nothink-baseline-lora-sft" \
    --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": "modrill/qwen3-4b-nothink-baseline-lora-sft",
		"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 "modrill/qwen3-4b-nothink-baseline-lora-sft" \
        --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": "modrill/qwen3-4b-nothink-baseline-lora-sft",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use modrill/qwen3-4b-nothink-baseline-lora-sft with Docker Model Runner:
```
docker model run hf.co/modrill/qwen3-4b-nothink-baseline-lora-sft
```

Qwen3-4B Code SFT - No-Think Baseline (LoRA Merged)

LoRA supervised fine-tuning of Qwen/Qwen3-4B-Base, with adapters merged into full weights for direct inference.

This repo is LoRA-based SFT (rank 64), not full-parameter fine-tuning.

Model Details

Base model: Qwen/Qwen3-4B-Base
Fine-tuning: LoRA SFT (rank 64, alpha 128), merged into full weights
Mode: No-think (enable_thinking=false)
Training cutoff length: 8192 tokens

Usage

from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "modrill/qwen3-4b-nothink-baseline-lora-sft"
tok = AutoTokenizer.from_pretrained(model_id, trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained(
    model_id, trust_remote_code=True, torch_dtype="auto", device_map="auto"
)

Inference Tips

Set enable_thinking=false in chat template
Recommended max_tokens: 8192

License

Apache 2.0, consistent with the Qwen3 base model license.

Downloads last month: 35

Safetensors

Model size

4B params

Tensor type

BF16

Model tree for modrill/qwen3-4b-nothink-baseline-lora-sft

Base model

Qwen/Qwen3-4B-Base

Adapter

(61)

this model