Lettria

Lettria is a natural language processing and knowledge graph platform engineered to help enterprises, researchers, and data teams extract structured intelligence from massive volumes of unstructured text data. Built specifically for business intelligence teams, data analysts, and software developers, the software bridges the divide between textual data archives and relational analytical insights.

The platform provides a complete no-code and code-friendly environment for named entity recognition, sentiment analysis, document classification, and knowledge graph construction. Users can ingest customer reviews, legal contracts, scientific literature, and internal communication transcripts, allowing Lettria's linguistic models to map relationships between people, organizations, concepts, and events with contextual accuracy.

Lettria operates as a cloud-hosted software application complemented by comprehensive Python SDKs and REST APIs for integration into enterprise data architectures. The platform offers a free tier for developers and small project evaluation alongside tiered enterprise subscriptions featuring dedicated data pipelines, on-premise deployment, and tailored NLP model fine-tuning.