Lettria vs Neo4j (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Lettria does not list a price
Free plan
Neo4j
Only Neo4j has one
Higher rating
Neo4j
3.9 against 4.5
Same job?
Yes
Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared on	Lettria	Neo4j
Our rating	3.9	4.5Better
Starts at	Not listed	Free
Free plan	No	YesBetter
Category	AI Infrastructure & Agent Tooling	AI Infrastructure & Agent Tooling
Plans	See pricing	Free
Key features	Ontology-powered knowledge graphs built from a company's own documents Stated 30%+ accuracy improvement over vector-based RAG on complex knowledge Perseus generates production-ready ontologies from domain data in minutes Built for compliance and traceability in regulated industries Business experts kept in the loop during graph generation	GraphRAG for grounding LLM answers in a knowledge graph Aura Agent for building context-aware agents Vector search alongside graph queries Model Context Protocol server and AI framework integrations Managed AuraDB on AWS, Azure and Google Cloud
Pros	Traceability and auditability matter for AI used in regulated industries Perseus meaningfully speeds up what is normally a months-long ontology project A named, checkable enterprise case study rather than only a claim	Free AuraDB tier with no credit card Relationships make AI answers traceable to source data Runs managed or self-hosted
Cons	No public pricing; every engagement starts with a demo or trial request Requires a real implementation project, not a plug-and-play setup Overkill for a small team with a basic internal search need	Hourly per-GB pricing needs monitoring Graph modeling and the Cypher query language take time to learn Accuracy and ROI figures are the vendor's own
Company	Lettria, founded 2019	Neo4j

Prices come from each vendor's pricing page, last checked 20261012. Check the vendor before you buy.

FAQ

Questions people ask

Is Lettria better than Neo4j?

In our reviews Lettria scores 3.9 and Neo4j scores 4.5. The better pick depends on the job. Lettria: Graph Context Layer platform from Lettria that turns enterprise documents and unstructured knowledge into ontology-powered graphs for grounded, traceable AI. Neo4j: Graph database and knowledge-graph platform positioned as a knowledge layer for AI, with GraphRAG for grounded LLM answers, Aura Agent for building context-aware agents, vector search and MCP support.

Which is cheaper, Lettria or Neo4j?

Lettria: see pricing. Neo4j: free.

Do Lettria and Neo4j have free plans?

Only Neo4j has a free plan.

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