Instructions to use lightonai/Qwen3-8B-SW with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use lightonai/Qwen3-8B-SW with Transformers:

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

pipe = pipeline("text-generation", model="lightonai/Qwen3-8B-SW")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("lightonai/Qwen3-8B-SW")
model = AutoModelForCausalLM.from_pretrained("lightonai/Qwen3-8B-SW", 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 lightonai/Qwen3-8B-SW with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "lightonai/Qwen3-8B-SW"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "lightonai/Qwen3-8B-SW",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/lightonai/Qwen3-8B-SW

SGLang

How to use lightonai/Qwen3-8B-SW 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 "lightonai/Qwen3-8B-SW" \
    --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": "lightonai/Qwen3-8B-SW",
		"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 "lightonai/Qwen3-8B-SW" \
        --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": "lightonai/Qwen3-8B-SW",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use lightonai/Qwen3-8B-SW with Docker Model Runner:
```
docker model run hf.co/lightonai/Qwen3-8B-SW
```

MaxLSB commited on May 27

Commit

5d9e79f

verified ·

1 Parent(s): 61c74c5

Hyperlink paper title to arXiv:2605.26735

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README.md CHANGED Viewed

@@ -18,7 +18,7 @@ pipeline_tag: text-generation
 `Qwen3-8B-SW` is a **native reasoning model** fine-tuned from [`Qwen/Qwen3-8B-Base`](https://huggingface.co/Qwen/Qwen3-8B-Base) to reason in Swahili. This model produces its **entire reasoning trace in Swahili** before delivering the final answer in Swahili.
-It is released alongside the paper **Rethinking the Multilingual Reasoning Gap with Layer Swap**.
 ## Model details

 `Qwen3-8B-SW` is a **native reasoning model** fine-tuned from [`Qwen/Qwen3-8B-Base`](https://huggingface.co/Qwen/Qwen3-8B-Base) to reason in Swahili. This model produces its **entire reasoning trace in Swahili** before delivering the final answer in Swahili.
+It is released alongside the paper [**Rethinking the Multilingual Reasoning Gap with Layer Swap**](https://arxiv.org/abs/2605.26735).
 ## Model details