Instructions to use sequelbox/Qwen3-4B-PlumEsper with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use sequelbox/Qwen3-4B-PlumEsper with Transformers:

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

pipe = pipeline("text-generation", model="sequelbox/Qwen3-4B-PlumEsper")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("sequelbox/Qwen3-4B-PlumEsper")
model = AutoModelForCausalLM.from_pretrained("sequelbox/Qwen3-4B-PlumEsper", 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 sequelbox/Qwen3-4B-PlumEsper with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "sequelbox/Qwen3-4B-PlumEsper"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "sequelbox/Qwen3-4B-PlumEsper",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/sequelbox/Qwen3-4B-PlumEsper

SGLang

How to use sequelbox/Qwen3-4B-PlumEsper 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 "sequelbox/Qwen3-4B-PlumEsper" \
    --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": "sequelbox/Qwen3-4B-PlumEsper",
		"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 "sequelbox/Qwen3-4B-PlumEsper" \
        --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": "sequelbox/Qwen3-4B-PlumEsper",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use sequelbox/Qwen3-4B-PlumEsper with Docker Model Runner:
```
docker model run hf.co/sequelbox/Qwen3-4B-PlumEsper
```
Browse Quantizations to use this model in llama.cpp, Ollama, LM Studio, or any compatible app.

PlumEsper

This is a merge of pre-trained language models created using mergekit, combining the specialty and general reasoning skills of Esper 3 4b and Shining Valiant 3 4b.

Merge Details

Merge Method

This model was merged using the DELLA merge method using Qwen/Qwen3-4B as a base.

Models Merged

The following models were included in the merge:

Configuration

The following YAML configuration was used to produce this model:

merge_method: della
dtype: bfloat16
parameters:
  normalize: true
models:
  - model: ValiantLabs/Qwen3-4B-Esper3
    parameters:
      density: 0.5
      weight: 0.3
  - model: ValiantLabs/Qwen3-4B-ShiningValiant3
    parameters:
      density: 0.5
      weight: 0.3
base_model: Qwen/Qwen3-4B