External Tools

External tools are third-party systems that Tabulus calls at specific pipeline boundaries. They are grouped here by the Tabulus step that uses them.

• Step 1 PDF Profiling Tool
  • MinerU
• Step 2 Table-Reconstruction Adapters
  • PaddleOCR-VL
  • Chandra OCR 2
  • NuExtract3
  • Tesseract + Table Transformer
  • Docling TableFormer
  • Granite Vision 4.1 4B
  • TRivia-3B
  • GLM-OCR
  • Dolphin-v2
  • DeepSeek-OCR-2
  • Nanonets-OCR-s
  • MonkeyOCRv2-B-Parsing
  • NVIDIA Nemotron Parse v1.2
  • HunyuanOCR-1.5
  • dots.mocr
  • InternVL3.5-8B
• Step 4 Bibliography Extraction Tool
  • GROBID