Description
LightOnOCR-3-4B is the largest and most accurate model in the LightOnOCR-3 family, designed to handle a wide range of OCR tasks with exceptional precision. This model is part of a new generation of lightweight end-to-end OCR models that incorporate layout and visual understanding features. It outputs bounding box coordinates with labels for all visual elements of a document, short descriptions of images, and numerical data of figures and charts. These capabilities make it a ready-to-use, easier-to-maintain alternative to complex document understanding pipelines.
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The LightOnOCR-3 family includes three model sizes: 1B, 0.8B, and 4B. The 1B model retains the architecture of LightOnOCR-2-1B, while the 0.8B and 4B models adopt the Qwen3.5 vision-language architecture, offering significant speed improvements and simplified integration with existing tools. All models are released under the Apache 2.0 license, allowing for both research and commercial use.
LightOnOCR-3-4B supports two primary modes of operation: transcription mode and grounding mode. In transcription mode, the model outputs the full page text when called with an empty prompt. Grounding mode, on the other hand, provides labels and bounding boxes for each block of content, enhancing the model's visual understanding capabilities. This mode is particularly useful for applications requiring detailed document analysis and retrieval.
The model is designed to handle various document types, including tables, receipts, forms, charts, multi-column layouts, and mathematical notation. It simplifies the deployment and maintenance of document processing systems by offering an end-to-end solution that eliminates the need for complex pipelines.
- CategoryAI Models & LLMs
- Pricing ModelOpen source
- DeploymentCloud
- PlatformsWeb
LightOnOCR-3-4B Highlights
Largest model in the LightOnOCR-3 family
Advanced layout and visual understanding
Outputs bounding box coordinates with labels
Transcription mode for full page text
Grounding mode for labeled content blocks
Handles tables, receipts, forms, and charts
Simplified integration with existing tools
Apache 2.0 license for research and commercial use
Getting Started with LightOnOCR-3-4B
Access model: Visit Hugging Face
Authenticate: Use your credentials
Set up environment: Install dependencies
Integrate via API: Use provided endpoints
Optimize: Adjust parameters for your needs
LightOnOCR-3-4B's Use Cases
- Document Transcription
- Visual Content Analysis
- Complex Document Processing
- Mathematical Notation Handling
- Data Extraction
