01
Advanced Multimodal OCR
Reads digital & scanned PDFs directly with neural vision—preserving multi-column layouts, 2D table matrices, and visual captions.
Scientific database generation · Advanced Kateeb OCR
Turn research PDFs into a database you can verify.
Kateeb uses advanced multimodal OCR to read full digital and scanned PDFs, preserves complex 2D table matrices and multi-column layouts, follows your schema, and returns structured rows with evidence attached.
150
papers free
2.99¢
best paid rate
1 credit
= 1 paper
90%+
validation target
Specialized product comparison
Tools with an extraction interface
Direct user-facing products only. Raw cloud APIs are not included.
Checked 24 Aug 2026
| Compare | Kateeb OUR TOOL | Elicit | Extralit | Unstract |
|---|---|---|---|---|
| Built for | Scientific PDFs → structured database | Research search and extraction tables | Scientific literature extraction workspace | No-code document extraction workflows |
| User interface | Guided web workspace | Web research tables | Web annotation and review UI | Agentic Prompt Studio |
| Advanced PDF OCR | Native Multimodal OCR for digital & scanned PDFs | Digital text layers only | Requires OCR pre-processing | Pipeline OCR connector |
| 2D Table & matrix extraction | Native 2D visual layout & coordinate awareness | Linearized text snippets (can misalign) | Table bounding box annotation | Rule-based table extractors |
| Find scientific papers | Search 200M+ papers or upload PDFs | Scientific search and imports | Import documents into a workspace | Upload or connect document sources |
| Ready database, no code | Yes | Research tables and exports | Extraction workspace after setup | Generic document pipelines |
| Your own data schema | Typed fields and controlled units | 5–30 columns at a time by plan | Versioned extraction schemas | Prompt-based extraction projects |
| Scientific evidence trail | DOI, page coordinates & visual source proof | Sources and answer explanations | Review, edit and team validation | Source highlighting and human review |
Kateeb document intelligence
From PDF to database in four steps
High-throughput multimodal OCR extraction, packaged for researchers—not developers.
02
Follow your schema
Typed fields, numerical precision, units and allowed values strictly guide extraction.
03
Create clean rows
Every paper becomes consistent, export-ready records with 90%+ precision targets.
04
Check the evidence
Zero-hallucination policy keeps missing values empty; extracted values link directly to source coordinates.
Native Multimodal PDF OCR 2D Table Matrix Vision Scanned PDF Support Long-document Context Zero-Hallucination Policy Coordinate Grounding Structured Output Batch-ready
Customer pricing
One paper. One credit.
One-time packages. Extract as many fields as your database needs.
Free
$0
150 papers
Start without a card
Starter
$29
500 papers
5.8¢ per paper
Researcher
$79
2,000 papers
4.0¢ per paper
Dataset
$299
10,000 papers
3.0¢ per paper
Build your first database free.
Add your PDFs, define the fields, and inspect every result beside its source with Kateeb Multimodal OCR.