README.md

---
license: apache-2.0
library_name: transformers
pipeline_tag: image-text-to-text
---

# OCRVerse: Towards Holistic OCR in End-to-End Vision-Language Models

OCRVerse is the first holistic OCR method in an end-to-end manner that enables unified text-centric OCR and vision-centric OCR. It tackles the demand for managing and applying massive amounts of multimodal data by recognizing both text elements from images or scanned documents (Text-centric OCR) and visual elements from visually information-dense image sources (Vision-centric OCR) like charts, web pages, and science plots. The model uses a two-stage SFT-RL multi-domain training method for improved cross-domain fusion.

- **Paper:** [OCRVerse: Towards Holistic OCR in End-to-End Vision-Language Models](https://huggingface.co/papers/2601.21639)
- **Repository:** [https://github.com/DocTron-hub/OCRVerse](https://github.com/DocTron-hub/OCRVerse)

## Sample Usage

OCRVerse can be used with the `transformers` library. Please ensure you have `transformers >= 4.57.0` installed.

```bash
pip install "transformers>=4.57.0"
```

### Text-Centric Task

This example demonstrates how to use OCRVerse for document parsing tasks.

```python
from transformers import Qwen3VLForConditionalGeneration, AutoProcessor
import torch

# Load model
model_path = 'DocTron/OCRVerse'
model = Qwen3VLForConditionalGeneration.from_pretrained(
    model_path,
    dtype="auto", 
    device_map="cuda",
    trust_remote_code=True
)
processor = AutoProcessor.from_pretrained(model_path, trust_remote_code=True)

# Prepare input with image and text
image_path = "path/to/your/image.jpg" # Example: "./assets/text_centric_test.jpg"
# We recommend using the following prompt to better performance, since it is used throughout the training process.
prompt = "Extract the main content from the document in the image, keeping the original structure. Convert all formulas to LaTeX and all tables to HTML."

messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": image_path},
            {"type": "text", "text": prompt},
        ]
    }
]

# Preparation for inference
inputs = processor.apply_chat_template(
    messages, 
    tokenize=True, 
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt"
)
inputs = inputs.to(model.device)

# Inference: Generation of the output
generated_ids = model.generate(**inputs, max_new_tokens=8192, do_sample=False)

generated_ids = [
    output_ids[len(input_ids):] for input_ids, output_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.tokenizer.batch_decode(
    generated_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text[0])
```

### Vision-Centric Task

Below is an example of how to use OCRVerse for vision-centric tasks, such as generating Python code from a chart image.

```python
from transformers import Qwen3VLForConditionalGeneration, AutoProcessor
import torch

# Load model
model_path = 'DocTron/OCRVerse'
model = Qwen3VLForConditionalGeneration.from_pretrained(
    model_path,
    dtype="auto", 
    device_map="cuda",
    trust_remote_code=True
)
processor = AutoProcessor.from_pretrained(model_path, trust_remote_code=True)

# Prepare input with image and text
image_path = "path/to/your/image.png" # Example: "./assets/vision_centric_test.png"
prompt = "You are an expert Python developer who specializes in writing matplotlib code based on a given picture. I found a very nice picture in a STEM paper, but there is no corresponding source code available. I need your help to generate the Python code that can reproduce the picture based on the picture I provide.
Note that it is necessary to use figsize=(7.0, 5.0) to set the image size to match the original size.
Now, please give me the matplotlib code that reproduces the picture below."

messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": image_path},
            {"type": "text", "text": prompt},
        ]
    }
]

# Preparation for inference
inputs = processor.apply_chat_template(
    messages, 
    tokenize=True, 
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt"
)
inputs = inputs.to(model.device)

# Inference: Generation of the output
generated_ids = model.generate(**inputs, max_new_tokens=4096, do_sample=False)

generated_ids = [
    output_ids[len(input_ids):] for input_ids, output_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.tokenizer.batch_decode(
    generated_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text[0])
```

## Citation

```bibtex
@misc{zhong2026ocrverse,
      title={OCRVerse: Towards Holistic OCR in End-to-End Vision-Language Models}, 
      author={Yufeng Zhong and Lei Chen and Xuanle Zhao and Wenkang Han and Liming Zheng and Jing Huang and Deyang Jiang and Yilin Cao and Lin Ma and Zhixiong Zeng},
      year={2026},
      eprint={2601.21639},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2601.21639}, 
}
```