Instructions to use deepseek-ai/DeepSeek-R1 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use deepseek-ai/DeepSeek-R1 with Transformers:

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

pipe = pipeline("text-generation", model="deepseek-ai/DeepSeek-R1", trust_remote_code=True)
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("deepseek-ai/DeepSeek-R1", trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained("deepseek-ai/DeepSeek-R1", trust_remote_code=True, 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]:]))

Inference
HuggingChat
Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use deepseek-ai/DeepSeek-R1 with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "deepseek-ai/DeepSeek-R1"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "deepseek-ai/DeepSeek-R1",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/deepseek-ai/DeepSeek-R1

SGLang

How to use deepseek-ai/DeepSeek-R1 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 "deepseek-ai/DeepSeek-R1" \
    --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": "deepseek-ai/DeepSeek-R1",
		"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 "deepseek-ai/DeepSeek-R1" \
        --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": "deepseek-ai/DeepSeek-R1",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use deepseek-ai/DeepSeek-R1 with Docker Model Runner:
```
docker model run hf.co/deepseek-ai/DeepSeek-R1
```

Regression in Reasoning Tag Output - Missing <think> in Model Responses

#181

by divinerapier - opened Mar 2, 2025

Discussion

divinerapier

Mar 2, 2025

Environment:

Model: DeepSeek-R1
Broken Revision: [both 8a58a132790c9935686eb97f042afa8013451c9f and a157fa3d494497a54586a333a23df6c2143e7697]
Working Revision: f7361cd9ff99396dbf6bd644ad846015e59ed4fc

Issue Description:
The model has stopped outputting the <think> tag in responses, which was previously available in revision f7361cd. This breaks expected chain-of-thought behavior.

Reproduction Steps:

Send prompt:
```
Hi
```
Response:

Expected Output (from revision f7361cd):

"<think>\n\n</think>\n\nHello! How can I assist you today? 😊"

Actual Output (latest revision):

"Okay, the user just said \"Hi\". That's a friendly greeting. I should respond in a warm and welcoming manner. Maybe say something like, \"Hello! How can I assist you today?\" to invite them to ask for help. Keep it open-ended so they feel comfortable to share what they need. Make sure to maintain a helpful and approachable tone.\n\nI need to check if there are any specific guidelines about responding to greetings. The instructions mention being helpful, using clear language, and avoiding markdown. So keep the response simple and professional. No need for any formatting here. Just a straightforward reply.\n</think>\n\nHello! How can I assist you today?"

allhackdieinbf5

Mar 4, 2025

try this https://huggingface.co/deepseek-ai/DeepSeek-R1/discussions/144,
My method was to delete the last in tokenizer_config.json

johansja

Apr 7, 2025

Is there any update on this?

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