Instructions to use ertghiu256/qwen3-4b-code-reasoning-v2 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use ertghiu256/qwen3-4b-code-reasoning-v2 with Transformers:

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

pipe = pipeline("text-generation", model="ertghiu256/qwen3-4b-code-reasoning-v2")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("ertghiu256/qwen3-4b-code-reasoning-v2")
model = AutoModelForCausalLM.from_pretrained("ertghiu256/qwen3-4b-code-reasoning-v2", device_map="auto")
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 ertghiu256/qwen3-4b-code-reasoning-v2 with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "ertghiu256/qwen3-4b-code-reasoning-v2"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "ertghiu256/qwen3-4b-code-reasoning-v2",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/ertghiu256/qwen3-4b-code-reasoning-v2

SGLang

How to use ertghiu256/qwen3-4b-code-reasoning-v2 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 "ertghiu256/qwen3-4b-code-reasoning-v2" \
    --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": "ertghiu256/qwen3-4b-code-reasoning-v2",
		"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 "ertghiu256/qwen3-4b-code-reasoning-v2" \
        --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": "ertghiu256/qwen3-4b-code-reasoning-v2",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Unsloth Desktop
Docker Model Runner
How to use ertghiu256/qwen3-4b-code-reasoning-v2 with Docker Model Runner:
```
docker model run hf.co/ertghiu256/qwen3-4b-code-reasoning-v2
```

ertghiu256 commited on Jun 2

Commit

98be681

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1 Parent(s): c5195ac

Update README.md

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@@ -6,6 +6,11 @@ tags:
 - transformers
 - unsloth
 - qwen3
 license: apache-2.0
 language:
 - en
@@ -15,6 +20,19 @@ datasets:
 - ChavyvAkvar/qwen3-coder-480b-distill-mini-Converted
 ---
 # Uploaded finetuned  model
 - **Developed by:** ertghiu256

 - transformers
 - unsloth
 - qwen3
+- code
+- cot
+- thinking
+- reasoning
+- small
 license: apache-2.0
 language:
 - en
 - ChavyvAkvar/qwen3-coder-480b-distill-mini-Converted
 ---
+# Qwen3-4b-code-reasoning-v2
+A small qwen 3 model with 4 billion parameters trained on `nvidia/OpenCodeReasoning` and `nvidia/OpenCodeInstruct`. The data is filtered only up to 32 thousands long.
+## Recommended parameters:
+```
+temp: 0.6-0.7
+repeat_penalty: 1.2
+top_p: 0.95
+top_k: 20
+min_p: 0.0
+enable_thinking: True
+```
 # Uploaded finetuned  model
 - **Developed by:** ertghiu256