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English · 原始项目 · 上游 README
原作者、版权与许可证归属以原始项目及本仓库 LICENSE 文件为准。
📥 模型下载 | 📄 论文链接 | 📄 Arxiv 论文链接 |
DeepSeek-OCR:上下文光学压缩(Contexts Optical Compression)
发布
- [2026/01/27]🚀🚀🚀🚀🚀🚀 我们发布 DeepSeek-OCR2
- [2025/10/23]🚀🚀🚀 DeepSeek-OCR 现已在上游 vLLM. 中获得官方支持。感谢 vLLM 团队的帮助。
- [2025/10/20]🚀🚀🚀 我们发布 DeepSeek-OCR,这是一个从以 LLM 为中心的视角研究视觉编码器作用的模型。
目录
安装
我们的环境为 cuda11.8+torch2.6.0。
- 克隆本仓库并进入 DeepSeek-OCR 文件夹
git clone https://github.com/deepseek-ai/DeepSeek-OCR.git
- Conda
conda create -n deepseek-ocr python=3.12.9 -y
conda activate deepseek-ocr
- 依赖包
- 下载 vllm-0.8.5 whl
pip install torch==2.6.0 torchvision==0.21.0 torchaudio==2.6.0 --index-url https://download.pytorch.org/whl/cu118
pip install vllm-0.8.5+cu118-cp38-abi3-manylinux1_x86_64.whl
pip install -r requirements.txt
pip install flash-attn==2.7.3 --no-build-isolation
注意: 若你希望 vLLM 与 Transformers 代码在同一环境中运行,则无需担心如下安装错误:vllm 0.8.5+cu118 requires transformers>=4.51.1
vLLM 推理
- VLLM:
注意: 请在 DeepSeek-OCR-master/DeepSeek-OCR-vllm/config.py 中修改 INPUT_PATH/OUTPUT_PATH 及其他设置
cd DeepSeek-OCR-master/DeepSeek-OCR-vllm
- 图像:流式输出
python run_dpsk_ocr_image.py
- PDF:并发约 2500 tokens/s(A100-40G)
python run_dpsk_ocr_pdf.py
- 基准测试批量评估
python run_dpsk_ocr_eval_batch.py
[2025/10/23] 上游 vLLM:
uv venv
source .venv/bin/activate
# Until v0.11.1 release, you need to install vLLM from nightly build
uv pip install -U vllm --pre --extra-index-url https://wheels.vllm.ai/nightly
from vllm import LLM, SamplingParams
from vllm.model_executor.models.deepseek_ocr import NGramPerReqLogitsProcessor
from PIL import Image
# Create model instance
llm = LLM(
model="deepseek-ai/DeepSeek-OCR",
enable_prefix_caching=False,
mm_processor_cache_gb=0,
logits_processors=[NGramPerReqLogitsProcessor]
)
# Prepare batched input with your image file
image_1 = Image.open("path/to/your/image_1.png").convert("RGB")
image_2 = Image.open("path/to/your/image_2.png").convert("RGB")
prompt = "<image>\nFree OCR."
model_input = [
{
"prompt": prompt,
"multi_modal_data": {"image": image_1}
},
{
"prompt": prompt,
"multi_modal_data": {"image": image_2}
}
]
sampling_param = SamplingParams(
temperature=0.0,
max_tokens=8192,
# ngram logit processor args
extra_args=dict(
ngram_size=30,
window_size=90,
whitelist_token_ids={128821, 128822}, # whitelist: <td>, </td>
),
skip_special_tokens=False,
)
# Generate output
model_outputs = llm.generate(model_input, sampling_param)
# Print output
for output in model_outputs:
print(output.outputs[0].text)
Transformers 推理
- Transformers
from transformers import AutoModel, AutoTokenizer
import torch
import os
os.environ["CUDA_VISIBLE_DEVICES"] = '0'
model_name = 'deepseek-ai/DeepSeek-OCR'
tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True)
model = AutoModel.from_pretrained(model_name, _attn_implementation='flash_attention_2', trust_remote_code=True, use_safetensors=True)
model = model.eval().cuda().to(torch.bfloat16)
# prompt = "<image>\nFree OCR. "
prompt = "<image>\n<|grounding|>Convert the document to markdown. "
image_file = 'your_image.jpg'
output_path = 'your/output/dir'
res = model.infer(tokenizer, prompt=prompt, image_file=image_file, output_path = output_path, base_size = 1024, image_size = 640, crop_mode=True, save_results = True, test_compress = True)
或者你可以
cd DeepSeek-OCR-master/DeepSeek-OCR-hf
python run_dpsk_ocr.py
支持模式
当前开源模型支持以下模式:
- 原生分辨率:
- Tiny: 512×512 (64 vision tokens)✅
- Small: 640×640 (100 vision tokens)✅
- Base: 1024×1024 (256 vision tokens)✅
- Large: 1280×1280 (400 vision tokens)✅
- 动态分辨率
- Gundam: n×640×640 + 1×1024×1024 ✅
提示词示例
# document: <image>\n<|grounding|>Convert the document to markdown.
# other image: <image>\n<|grounding|>OCR this image.
# without layouts: <image>\nFree OCR.
# figures in document: <image>\nParse the figure.
# general: <image>\nDescribe this image in detail.
# rec: <image>\nLocate <|ref|>xxxx<|/ref|> in the image.
# '先天下之忧而忧'
可视化
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致谢
我们感谢 Vary, GOT-OCR2.0, MinerU, PaddleOCR, OneChart, Slow Perception 提供的宝贵模型与思路。
我们也感谢以下基准测试:Fox, OminiDocBench.
引用
@article{wei2025deepseek,
title={DeepSeek-OCR: Contexts Optical Compression},
author={Wei, Haoran and Sun, Yaofeng and Li, Yukun},
journal={arXiv preprint arXiv:2510.18234},
year={2025}
}




