Instructions to use nvidia/Efficient-DLM-4B with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use nvidia/Efficient-DLM-4B with Transformers:

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

pipe = pipeline("text-generation", model="nvidia/Efficient-DLM-4B", trust_remote_code=True)
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModel

tokenizer = AutoTokenizer.from_pretrained("nvidia/Efficient-DLM-4B", trust_remote_code=True)
model = AutoModel.from_pretrained("nvidia/Efficient-DLM-4B", trust_remote_code=True)
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

vLLM

How to use nvidia/Efficient-DLM-4B with vLLM:

Install from pip and serve model

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

Use Docker

docker model run hf.co/nvidia/Efficient-DLM-4B

SGLang

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

Docker Model Runner
How to use nvidia/Efficient-DLM-4B with Docker Model Runner:
```
docker model run hf.co/nvidia/Efficient-DLM-4B
```

Efficient-DLM-4B / config.json

YongganFu

Initial release of Efficient-DLM-4B

d28c316 5 days ago

raw

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1.26 kB

	{
	"adaptive_mask_rate": false,
	"architectures": [
	"EfficientDLM"
	],
	"attention_bias": false,
	"attention_dropout": 0.0,
	"attn_implementation": "sdpa",
	"auto_map": {
	"AutoConfig": "configuration_edlm.EfficientDLMConfig",
	"AutoModel": "modeling_edlm.EfficientDLM"
	},
	"block_size": 32,
	"diff_loss_weight": 1,
	"disable_qk_norm": false,
	"dlm_arch": "encoder",
	"dlm_paradigm": "bidirectional",
	"dlm_type": "llada",
	"enforce_mask": false,
	"head_dim": 128,
	"hidden_act": "silu",
	"hidden_size": 2560,
	"initializer_range": 0.02,
	"intermediate_size": 9728,
	"intl_mask": false,
	"mask_token_id": 151662,
	"max_position_embeddings": 32768,
	"max_window_layers": 28,
	"model_type": "qwen3",
	"multi_sampling": null,
	"num_ar_layers": 0,
	"num_attention_heads": 32,
	"num_diffusion_layers": 0,
	"num_hidden_layers": 36,
	"num_key_value_heads": 8,
	"prefix_ratio": 0.8,
	"random_length_prob": 0,
	"rms_norm_eps": 1e-06,
	"rope_scaling": null,
	"rope_theta": 1000000,
	"sliding_window": null,
	"tie_word_embeddings": false,
	"tok_mask_half_life_ratio": null,
	"torch_dtype": "bfloat16",
	"transformers_version": "4.52.2",
	"use_cache": false,
	"use_sliding_window": false,
	"vocab_size": 151936
	}