Instructions to use PS4CoT/phi4-reasoning-sdf-qa-sft with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use PS4CoT/phi4-reasoning-sdf-qa-sft with Transformers:

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

pipe = pipeline("text-generation", model="PS4CoT/phi4-reasoning-sdf-qa-sft")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# pip install -U transformers accelerate
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("PS4CoT/phi4-reasoning-sdf-qa-sft")
model = AutoModelForCausalLM.from_pretrained("PS4CoT/phi4-reasoning-sdf-qa-sft", 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=256)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use PS4CoT/phi4-reasoning-sdf-qa-sft with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "PS4CoT/phi4-reasoning-sdf-qa-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": "PS4CoT/phi4-reasoning-sdf-qa-sft",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/PS4CoT/phi4-reasoning-sdf-qa-sft

SGLang

How to use PS4CoT/phi4-reasoning-sdf-qa-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 "PS4CoT/phi4-reasoning-sdf-qa-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": "PS4CoT/phi4-reasoning-sdf-qa-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 "PS4CoT/phi4-reasoning-sdf-qa-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": "PS4CoT/phi4-reasoning-sdf-qa-sft",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use PS4CoT/phi4-reasoning-sdf-qa-sft with Docker Model Runner:
```
docker model run hf.co/PS4CoT/phi4-reasoning-sdf-qa-sft
```

phi4-reasoning-sdf-qa-sft

A control organism: Phi-4-reasoning fine-tuned with supervised question-answer pairs that state the same 50 facts directly, instead of the synthetic documents used by the SDF organisms. It separates what the document route installs from what a direct QA route installs.

Details

Base model: Phi-4-reasoning; full merged 16-bit weights.
Training and evaluation code: the code repository CoT-Verse.
Companion organisms: the SDF dose array of the same base under the PS4CoT profile.

Intended use

Research on chain-of-thought faithfulness and belief installation. Not an assistant.

Downloads last month: 47

Safetensors

Model size

15B params

Tensor type

BF16

Model tree for PS4CoT/phi4-reasoning-sdf-qa-sft

Base model

microsoft/phi-4

Finetuned

microsoft/Phi-4-reasoning

Finetuned

(18)

this model