The Graph Context Layer powering the AI stack
We unify structured data and unstructured knowledge into ontology-powered graphs that make enterprise AI grounded, traceable, and trusted.
Choose your path into the Graph Context Layer
Use GraphRAG to turn complex enterprise knowledge into reliable, traceable answers. Use Perseus to build production-grade graph agents on a ready-to-use infrastructure.
Knowledge Studio
The graph-native document-intelligence platform for regulated industries. Where vector RAG hallucinates, GraphRAG reasons.
Ontology-powered document intelligence
30%+ more accurate, audit-ready by design
Built for compliance and traceability
Perseus
Generate ontologies and knowledge graphs in minutes, not months. Create production-ready ontologies and graphs faster, with business experts in the loop.
Generate ontologies from your domain data
Build and version knowledge graphs faster
Keep business experts in the loop
Complex enterprise deployment ?
Explore Forward Deployed
Already in production in regulated industries
Lettria structures complex documentation, scientific knowledge and enterprise data into AI systems that are reliable, traceable and usable in production.
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Vectors retrieve.
Graphs reason.
Vector search works well for simple retrieval, but reaches its limits when AI must connect multiple sources, understand structured business data and provide answers that can be verified.
Multi-hop reasoning
Relevant information is fragmented across isolated chunks, making complex relationships difficult to follow.
Structured + unstructured data
Relevant information is fragmented across isolated chunks, making complex relationships difficult to follow.
Traceability + auditability
Relevant information is fragmented across isolated chunks, making complex relationships difficult to follow.
The missing layer between your enterprise data and your AI
Lettria transforms structured and unstructured information into ontology-powered knowledge graphs that AI systems can reason over, inspect and verify.
Three capabilities.
One coherent layer
Lettria structures domain knowledge, transforms enterprise data into connected graphs and enables AI systems to retrieve answers through traceable reasoning paths.
Ontology Building
Auto-generate production-grade ontologies from your domain, in days, not months.
Built automatically, not hand-modeled
Captures your domain’s real logic
Governed and version-controlled
Explore Ontology Building
Text-to-Graph
Turn messy documents, tables and SAP exports into a clean, queryable knowledge graph.
Structured + unstructured, unified
Native tables, layouts, multimodal
Connects the sources you already have
View Text-to-Graph benchmark
Graph Retrieval
Every answer traces back to its source, so your AI is audit-ready — not a black box.
Multi-hop reasoning, not keyword match
Full provenance on every answer
Ready for regulatory review
Explore GraphRAG
Where vectors break, graphs reason
Vector retrieval is effective for similarity search. Graph-based agents follow explicit relationships across connected enterprise knowledge to support more complex, verifiable reasoning.
Trusted in the most demanding domains
Lettria combines benchmark-backed performance with external validation and real-world production deployments.
Benchmark results
Published evaluations measure Lettria’s ontology generation, Text-to-Graph pipeline and graph-based reasoning.
- 30%+ more accurate
- Up to 400× faster
- 81.7% overall accuracy
Explore benchmark methodologies
External validation
Research publications, analyst recognition and technical talks support Lettria’s expertise in knowledge graphs and applied AI.
- Research papers
- Analyst mentions
- Conference talks
Explore research & publications
Customer results
Organizations use Lettria to structure complex knowledge, improve information access and deploy traceable AI in production.
- Alfa Laval
- WiseCube
- AP-HP — and more
View all case studies
Built for complex and regulated industries
Lettria connects complex documents, structured data and domain knowledge so enterprise AI delivers reliable, verifiable answers.
Finance
Make financial, regulatory and ESG information easier to structure, verify and query — producing reliable, traceable answers.
Explore FINANCE
Healthcare
Structure medical, scientific and pharmaceutical knowledge with traceable sources and accuracy.
Explore Healthcare
Legal
Navigate contracts, regulations and complex legal corpora with greater traceability across evolving knowledge bases.
Explore Legal
Engineering
Turn technical documentation into connected, usable enterprise knowledge from manuals, specs and complex industrial content.
Explore ENGINEERING
Some problems need our team, not just our product
Lettria embeds engineers and ontology experts alongside your teams to solve knowledge problems that cannot be addressed through software alone.
Embedded engineers
Engineers work alongside your technical teams to connect systems, adapt workflows and move projects from prototype to production.
- System integration
- Custom workflows
- Production deployment
Ontology experts
Domain specialists help define concepts, relationships and knowledge structures adapted to your business environment.
- Domain modeling
- Knowledge architecture
- Governance and consistency
Applied AI specialists
Lettria helps teams align data, graph infrastructure and AI applications around a reliable production-ready architecture.
- Use-case design
- Evaluation and benchmarking
- Operational deployment
Applied AI expertise
Published methodologies
Enterprise deployments
Papers and technical talks
Turn complex enterprise knowledge into reliable AI
Choose the path that fits your team: explore Knowledge Studio or start building with Perseus.
