Glossary
Knowledge Graph
Last reviewed: 2026-05-12
A Knowledge Graph is a structured representation of entities and their relationships. Major examples include Google Knowledge Graph, Wikidata, and the Bing Entity Graph. KG-grounded LLM responses fabricate substantially less than ungrounded ones.
Frequently asked
- What is a Knowledge Graph?
- A Knowledge Graph is a structured representation of entities and the relationships between them. Major examples include Google Knowledge Graph, Wikidata, and the Bing Entity Graph.
- Why do LLMs use Knowledge Graphs?
- Knowledge Graphs provide canonical facts about entities, reducing the rate at which language models fabricate details. Research shows KG-grounded responses fabricate substantially less than ungrounded ones.
- How do I get into the Knowledge Graph?
- Create a Wikidata Q-id with bidirectional sameAs claims to your ORCID, ROR, and official site. Wikidata is the cheapest, ungated entry point to the broader KG ecosystem.