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Stardog

by Stardog Union Inc.

System Card

OrganizationStardog Union Inc.
Released2010-01
Architecturegraph-rag / enterprise knowledge graph with SPARQL and virtual graphs
DetailsStardog is a semantic-web knowledge graph platform combining RDF/OWL triple storage, SPARQL querying, virtual graph federation (query across existing databases without ETL), and a conversational AI assistant (Voicebox). It uses ontological reasoning to infer new facts from existing data. Widely deployed in regulated industries (pharma, finance, defense) for enterprise knowledge integration.
Parameters—
Domainknowledge-graphrag-retrieval
Open SourceNo
WebsiteVisit
RDFSPARQLOWLvirtual-graphsontological-reasoning

Capability Profile

Benchmark Scores

6 of 14 benchmarks
Data Transparency:6 estimated
Long-Context Retrieval
2/5
RULER
69.941pEstimated
NIAH
no data
LooGLE
no data
LongBench
603pEstimated
∞Bench
no data
Multi-Turn Recall
0/2
LoCoMo
no data
MemoryBank
no data
Cross-Session Memory
1/1
LongMemEval
73.434pEstimated
Multi-Hop QA
2/3
BABILong
no data
MultiHop-RAG
7579pEstimated
HotpotQA
70.447pEstimated
Agent Task Memory
0/1
AgentBench-Mem
no data
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
1/1
RAGAS
72.878pEstimated
Sources:Arena estimate — derived from capability profile, not independently verified