DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16

Model Overview

Model Architecture: Qwen2ForCausalLM
- Input: Text
- Output: Text
Model Optimizations:
- Weight quantization: INT4
Release Date: 2/4/2025
Version: 1.0
Model Developers: Neural Magic

Quantized version of DeepSeek-R1-Distill-Qwen-7B.

Model Optimizations

This model was obtained by quantizing the weights of DeepSeek-R1-Distill-Qwen-7B to INT4 data type. This optimization reduces the number of bits per parameter from 16 to 4, reducing the disk size and GPU memory requirements by approximately 75%.

Only the weights of the linear operators within transformers blocks are quantized. Weights are quantized using a symmetric per-group scheme, with group size 128. The GPTQ algorithm is applied for quantization, as implemented in the llm-compressor library.

Use with vLLM

This model can be deployed efficiently using the vLLM backend, as shown in the example below.

from transformers import AutoTokenizer
from vllm import LLM, SamplingParams

number_gpus = 1
model_name = "neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16"

tokenizer = AutoTokenizer.from_pretrained(model_name)
sampling_params = SamplingParams(temperature=0.6, max_tokens=256, stop_token_ids=[tokenizer.eos_token_id])
llm = LLM(model=model_name, tensor_parallel_size=number_gpus, trust_remote_code=True)

messages_list = [
    [{"role": "user", "content": "Who are you? Please respond in pirate speak!"}],
]

prompt_token_ids = [tokenizer.apply_chat_template(messages, add_generation_prompt=True) for messages in messages_list]

outputs = llm.generate(prompt_token_ids=prompt_token_ids, sampling_params=sampling_params)

generated_text = [output.outputs[0].text for output in outputs]
print(generated_text)

vLLM also supports OpenAI-compatible serving. See the documentation for more details.

Creation

This model was created with llm-compressor by running the code snippet below.

from transformers import AutoModelForCausalLM, AutoTokenizer
from llmcompressor.modifiers.quantization import QuantizationModifier
from llmcompressor.modifiers.smoothquant import SmoothQuantModifier
from llmcompressor.transformers import oneshot

# Load model
model_stub = "deepseek-ai/DeepSeek-R1-Distill-Qwen-7B"
model_name = model_stub.split("/")[-1]

num_samples = 2048
max_seq_len = 8192

tokenizer = AutoTokenizer.from_pretrained(model_stub)

model = AutoModelForCausalLM.from_pretrained(
    model_stub,
    device_map="auto",
    torch_dtype="auto",
)

def preprocess_fn(example):
  return {"text": tokenizer.apply_chat_template(example["messages"], add_generation_prompt=False, tokenize=False)}

ds = load_dataset("neuralmagic/LLM_compression_calibration", split="train")
ds = ds.map(preprocess_fn)

# Configure the quantization algorithm and scheme
recipe = QuantizationModifier(
    targets="Linear",
    scheme="W4A16",
    ignore=["lm_head"],
    dampening_frac=0.01,
)

# Apply quantization
oneshot(
    model=model,
    dataset=ds, 
    recipe=recipe,
    max_seq_length=max_seq_len,
    num_calibration_samples=num_samples,
)

# Save to disk in compressed-tensors format
save_path = model_name + "-quantized.w4a16
model.save_pretrained(save_path)
tokenizer.save_pretrained(save_path)
print(f"Model and tokenizer saved to: {save_path}")

Evaluation

The model was evaluated on OpenLLM Leaderboard V1 and V2, using the following commands:

OpenLLM Leaderboard V1:

lm_eval \
  --model vllm \
  --model_args pretrained="neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16",dtype=auto,max_model_len=4096,tensor_parallel_size=1,enable_chunked_prefill=True \
  --tasks openllm \
  --write_out \
  --batch_size auto \
  --output_path output_dir \
  --show_config

OpenLLM Leaderboard V2:

lm_eval \
  --model vllm \
  --model_args pretrained="neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16",dtype=auto,max_model_len=4096,tensor_parallel_size=1,enable_chunked_prefill=True \
  --apply_chat_template \
  --fewshot_as_multiturn \
  --tasks leaderboard \
  --write_out \
  --batch_size auto \
  --output_path output_dir \
  --show_config

Accuracy

Category	Metric	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	Recovery
OpenLLM V1	ARC-Challenge (Acc-Norm, 25-shot)	50.51		%
	GSM8K (Strict-Match, 5-shot)	78.62		%
	HellaSwag (Acc-Norm, 10-shot)	61.90		%
	MMLU (Acc, 5-shot)	54.19		%
	TruthfulQA (MC2, 0-shot)	45.55		%
	Winogrande (Acc, 5-shot)	61.56		%
	Average Score	58.72		%
OpenLLM V2	IFEval (Inst Level Strict Acc, 0-shot)	39.67		%
	BBH (Acc-Norm, 3-shot)	39.60		%
	Math-Hard (Exact-Match, 4-shot)	0.00	0.00	---
	GPQA (Acc-Norm, 0-shot)	25.24		%
	MUSR (Acc-Norm, 0-shot)	38.09		%
	MMLU-Pro (Acc, 5-shot)	19.53		%
	Average Score	27.02		%
Coding	HumanEval (pass@1)	40.80	48.50	118.9%
	HumanEval (pass@10)	64.40	67.10	104.2%
	HumanEval+ (pass@10)	38.50	45.00	116.9%
	HumanEval+ (pass@10)	60.40	64.10	106.1%

Inference Performance

This model achieves up to 2.6x speedup in single-stream deployment and up to 1.5x speedup in multi-stream asynchronous deployment, depending on hardware and use-case scenario. The following performance benchmarks were conducted with vLLM version 0.7.2, and GuideLLM.

Benchmarking Command

guidellm --model neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16 --target "http://localhost:8000/v1" --data-type emulated --data "prompt_tokens=<prompt_tokens>,generated_tokens=<generated_tokens>" --max seconds 360 --backend aiohttp_server

Single-stream performance (measured with vLLM version 0.7.2)

			Instruction Following 256 / 128		Multi-turn Chat 512 / 256		Docstring Generation 768 / 128		RAG 1024 / 128		Code Completion 256 / 1024		Code Fixing 1024 / 1024		Large Summarization 4096 / 512		Large RAG 10240 / 1536
Hardware	Model	Average cost reduction	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD	Latency (s)	QPD
A6000x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	2.9	1576	5.7	788	2.9	1535	3.0	1496	22.6	199	23.2	194	12.1	370	38.5	117
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w8a8	1.56	1.8	2495	3.7	1223	1.9	2384	1.9	2393	14.3	315	14.8	304	7.9	572	25.3	178
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	2.41	1.1	4086	2.3	1998	1.2	3783	1.3	3527	8.6	526	8.8	512	5.2	860	22.7	198
A100x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	1.4	1389	2.9	691	1.5	1358	1.5	1329	11.5	175	11.6	174	6.2	326	21.5	93
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w8a8	1.28	1.1	1850	2.2	905	1.1	1807	1.1	1750	8.6	233	8.7	230	4.7	431	23.1	87
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	1.72	0.8	2575	1.5	1298	0.8	2461	0.8	2382	6.1	331	6.2	323	3.6	566	22.7	89
H100x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	0.9	1161	1.9	579	1.0	1138	1.0	1121	7.5	146	7.6	145	3.9	279	15.4	71
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-FP8-dynamic	1.34	0.7	1585	1.4	786	0.7	1577	0.7	1524	5.3	207	5.5	197	2.9	382	14.3	77
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	1.33	0.7	1590	1.4	793	0.7	1549	0.7	1509	5.4	201	5.5	198	2.9	381	14.0	78

**Use case profiles: prompt tokens / generation tokens

**QPD: Queries per dollar, based on on-demand cost at Lambda Labs (observed on 2/18/2025).

Multi-stream asynchronous performance (measured with vLLM version 0.7.2)

			Instruction Following 256 / 128		Multi-turn Chat 512 / 256		Docstring Generation 768 / 128		RAG 1024 / 128		Code Completion 256 / 1024		Code Fixing 1024 / 1024		Large Summarization 4096 / 512		Large RAG 10240 / 1536
Hardware	Model	Average cost reduction	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD	Maximum throughput (QPS)	QPD
A6000x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	14.9	67138	7.1	32094	7.4	33096	5.9	26480	2.0	9004	1.5	6639	1.1	4938	0.3	1151
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w8a8	1.36	20.2	90956	8.8	39786	10.2	45963	8.1	36596	3.1	13968	2.1	9629	1.4	6374	0.3	1429
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	1.00	13.3	59681	6.1	27633	5.9	26689	4.7	20944	2.9	13108	1.9	8355	1.0	4362	0.3	1170
A100x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	26.4	53073	13.0	26213	14.5	29110	11.4	22936	4.4	8749	3.3	6680	2.3	4634	0.5	1105
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w8a8	1.27	34.3	69009	14.8	29791	19.0	38214	15.7	31598	5.6	11186	4.2	8350	3.0	6020	0.7	1328
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	0.93	23.9	47993	12.0	24194	12.5	25239	10.0	20029	4.5	9055	3.3	6681	2.1	4156	0.5	1043
H100x1	deepseek-ai/DeepSeek-R1-Distill-Qwen-7B	---	54.3	59410	26.0	28440	32.1	35154	26.7	29190	8.0	8700	6.6	7275	5.2	5669	1.2	1266
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-FP8-dynamic	1.16	62.9	68818	30.3	33196	39.4	43132	31.1	34073	9.2	10058	7.1	7748	6.1	6714	1.3	1415
	neuralmagic/DeepSeek-R1-Distill-Qwen-7B-quantized.w4a16	1.02	56.2	61483	26.7	29243	32.5	35592	26.9	29461	8.3	9072	6.4	7027	5.2	5731	1.2	1291