Lettria

What is Lettria?

Lettria is a graph context layer for enterprise AI that turns complex knowledge into ontology-powered knowledge graphs. AI systems can then reason over connected data with traceability.

Key capabilities of Lettria

• GraphRAG (Knowledge Studio): Document intelligence for regulated industries.
• Perseus: Developer platform for production graph agents.
• Ontology building: Automated and governance-controlled.
• Text-to-Graph: Converts text to graphs, claimed 30 percent more accurate and 400x faster.
• Graph retrieval: Multi-hop reasoning with full provenance.

How Lettria works

Lettria generates an ontology and knowledge graph from domain documents, with business experts involved in refining it. Retrieval then follows graph relationships with multi-hop reasoning and provenance back to the source. Perseus exposes this to developers building graph agents.

Who uses Lettria?

Lettria targets finance, healthcare, legal and engineering teams. The vendor claims GraphRAG is 30 percent or more accurate than vector-based approaches.

Lettria pricing

Lettria mentions a pricing page but does not show prices on the page reviewed. Contact the vendor for plans.

Lettria alternatives

Alternatives include Neo4j, which is a graph database with GraphRAG tooling, Stardog, which offers enterprise knowledge graphs, and Diffbot, which builds a web-scale knowledge graph.