Lettria

Lettria is an AI platform that extracts reliable, traceable insights from complex, high-risk documents. It combines document parsing, ontology building, text-to-graph conversion, and GraphRAG to structure unstructured data into knowledge graphs. The platform is designed for regulated industries such as healthcare, finance, legal, and engineering, where accuracy and auditability are critical. Lettria's core modules include Document Parsing (extracts tables, diagrams, reading order from complex PDFs), Ontology Building (generates domain-specific ontologies automatically), Text to Graph (converts text into knowledge graphs with entities and relations), and GraphRAG (combines graph retrieval with reasoning for transparent outputs). The platform also offers Perseus, a native graph infrastructure for building and versioning schemas, unifying data sources, and proprietary extraction models that avoid hallucinations. Lettria claims to improve RAG accuracy by 30% and is trusted by organizations like AP-HP, Leroy Merlin, and Alfa Laval.

Key Benefits

• Extracts reliable insights with full traceability
• Combines document parsing, ontology, text-to-graph, and GraphRAG
• Zero hallucinations with proprietary extraction models
• Auto-ontology building evolves with data