Extensions/ComfyUI-DeepSeek-OCR
ComfyUI Extension

ComfyUI-DeepSeek-OCR

A powerful OCR node for ComfyUI that integrates the DeepSeek-OCR model from Hugging Face.

By 1038lab·Created 10 months ago·Updated 10 months ago· 16
1038lab/ComfyUI-DeepSeek-OCR
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Updated10 months ago
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ComfyUI-DeepSeek-OCR

A powerful OCR node for ComfyUI that integrates the DeepSeek-OCR model from Hugging Face.

Current Status

[!NOTE]
ComfyUI-DeepSeek-OCR is currently in V0.0.1 beta status. Please stay tuned for future releases as we continue to refine and expand the functionality of this node.

Features

  • ✅ Models stored directly in ComfyUI/models/LLM/DeepSeek-OCR/ (no nested folders)
  • ✅ Uses hf_hub_download for clean, direct file downloads
  • ✅ Compatible with transformers 4.46+ (with optional patching for 4.50+)
  • ✅ Multiple OCR task types (Free OCR, Markdown, Figure parsing)
  • ✅ Multiple resolution presets for speed/quality tradeoff
  • ✅ Optional detection box visualization

Installation

1. Clone into ComfyUI custom_nodes folder

cd ComfyUI/custom_nodes
git clone https://github.com/1038lab/ComfyUI-DeepSeek-OCR.git
cd deepseek_ocr

2. Install dependencies

pip install -r requirements.txt

3. Install flash-attn (Optional but Recommended)

pip install flash-attn --no-build-isolation

If flash-attn fails, the node will work with eager attention (slower but functional).

4. Fix compatibility (for transformers 4.50+)

If you have transformers 4.50 or newer (like 4.57):

python patch_model_code.py

This patches the model's Python code to work with newer transformers versions.

5. Restart ComfyUI

Model Download

On first use, the node will automatically download model files (~6.6GB) to:

ComfyUI/models/LLM/DeepSeek-OCR/
├── config.json
├── tokenizer.json
├── model-00001-of-00012.safetensors
... (12 safetensors files total)

No nested folders! All files go directly into DeepSeek-OCR/.

Usage

Inputs

  • image (IMAGE): Input image for OCR
  • task_type (COMBO): OCR task to perform
    • Free OCR - Simple text extraction (default)
    • Convert to Markdown - Convert document to markdown format
    • Parse Figure - Extract text from charts/figures
  • resolution_preset (COMBO): Quality/speed tradeoff
    • Tiny (512x512) - Fastest
    • Small (640x640) - Fast
    • Base (1024x1024) - Balanced (default)
    • Large (1280x1280) - High quality
    • Gundam (1024x640) - Optimized for documents
  • draw_boxes (COMBO): Visualization
    • disable - No boxes (default)
    • enable - Draw detection boxes
  • eval_mode (COMBO): Performance mode
    • disable - Full output (default)
    • enable - Faster, text-only

Outputs

  • text (STRING): Recognized text or markdown
  • image_output (IMAGE): Original or annotated image

Task Types Explained

Free OCR

Basic text extraction. Best for:

  • Simple documents
  • Receipts
  • Forms
  • Signs

Convert to Markdown

Converts structured documents to markdown. Preserves:

  • Headings
  • Tables
  • Lists
  • Text formatting

Best for: academic papers, reports, structured documents.

Parse Figure

Specialized for extracting text from:

  • Charts and graphs
  • Diagrams
  • Scientific figures
  • Data visualizations

Resolution Presets Guide

| Preset | Size | Speed | Accuracy | Best For | |--------|------|-------|----------|----------| | Tiny | 512 | ⚡⚡⚡ | ⭐⭐ | Quick tests | | Small | 640 | ⚡⚡ | ⭐⭐⭐ | Simple docs | | Base | 1024 | ⚡ | ⭐⭐⭐⭐ | Most cases | | Large | 1280 | 🐢 | ⭐⭐⭐⭐⭐ | Complex docs | | Gundam | 1024+crop | ⚡⚡ | ⭐⭐⭐⭐ | Documents |

Troubleshooting

ImportError: cannot import name 'LlamaFlashAttention2'

This happens with transformers 4.50+.

Solution:

cd ComfyUI/custom_nodes/deepseek_ocr
python patch_model_code.py
# Restart ComfyUI

The patch makes the model code compatible with any transformers version.

"No model code found" when running patch

  1. Try to use the node in ComfyUI once (it will fail but download the code)
  2. Run python patch_model_code.py again
  3. Restart ComfyUI

Model files location

All model files are stored directly in:

ComfyUI/models/LLM/DeepSeek-OCR/

No nested snapshots/ or models--deepseek-ai--DeepSeek-OCR/ folders!

The node uses hf_hub_download with local_dir and local_dir_use_symlinks=False for clean, direct downloads.

Download failed or incomplete

If download is interrupted:

  1. Delete the ComfyUI/models/LLM/DeepSeek-OCR/ folder
  2. Restart ComfyUI
  3. The node will re-download all files

CUDA out of memory

Use smaller presets: Tiny or Small.

Slow performance

  • Enable eval_mode for faster processing
  • Use GPU if available
  • Use smaller resolution presets
  • Install flash-attn

No boxes drawn

Detection boxes only appear when:

  • Model generates <|det|> tags in output
  • Task supports grounding (Markdown conversion)

Why This Approach?

This node follows the same download pattern as ComfyUI-RMBG:

  • Uses hf_hub_download for individual file downloads
  • Stores files directly in model folder (no nested structure)
  • Uses local_dir parameter for clean organization
  • Uses local_files_only=True after download

This makes the model folder clean and easy to manage.

Requirements

  • Python 3.10+
  • CUDA 11.8+ (for GPU)
  • torch >= 2.0.0
  • transformers >= 4.46.0
  • huggingface_hub
  • flash-attn (optional, for speed)

Links

  • Model: https://huggingface.co/deepseek-ai/DeepSeek-OCR
  • GitHub: https://github.com/deepseek-ai/DeepSeek-OCR
  • This Node: https://github.com/1038lab/ComfyUI-DeepSeek-OCR

License

MIT License - follows DeepSeek-OCR model license.