Skip to content
Longterm Wiki
Back

Wikidata - Free Collaborative Knowledge Base

reference
Wikipedia·en.wikipedia.org/wiki/Wikidata

Credibility Rating

3/5
Good(3)

Good quality. Reputable source with community review or editorial standards, but less rigorous than peer-reviewed venues.

Rating inherited from publication venue: Wikipedia

Wikidata is a foundational open knowledge graph occasionally referenced in AI safety contexts for its role as a public data infrastructure, useful for knowledge-grounded AI systems and as a case study in open collaborative data governance.

Metadata

Importance: 30/100wiki pagereference

Summary

Wikidata is a free, collaborative, multilingual knowledge base operated by the Wikimedia Foundation that serves as a central structured data repository for Wikipedia and other Wikimedia projects. It provides machine-readable linked open data covering millions of entities, facts, and relationships. As a public good, it supports AI and NLP research by offering large-scale structured knowledge for training and evaluation.

Key Points

  • •Wikidata is a free, open, collaboratively edited knowledge graph with hundreds of millions of statements about real-world entities.
  • •It serves as a structured data backbone for Wikipedia and other Wikimedia projects, enabling consistent cross-language information sharing.
  • •Data is available under CC0 (public domain), making it freely usable for AI training, knowledge graphs, and research.
  • •Wikidata is widely used in NLP and AI research for entity linking, question answering, and knowledge-grounded language models.
  • •Its open infrastructure exemplifies public-goods approaches to information, relevant to discussions of open vs. proprietary AI data.

Cited by 1 page

PageTypeQuality
AI-Era Epistemic InfrastructureApproach59.0

Cached Content Preview

HTTP 200Fetched Mar 20, 202675 KB
# Wikidata

Wikidata

Collaborative multilingual knowledge graph

For Wikipedia's information page on Wikidata, see [Wikipedia:Wikidata](https://en.wikipedia.org/wiki/Wikipedia:Wikidata "Wikipedia:Wikidata").

|     |     |
| --- | --- |
| ![](https://upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/120px-Ambox_important.svg.png) | **This article has multiple issues.** Please help **[improve it](https://en.wikipedia.org/wiki/Special:EditPage/Wikidata "Special:EditPage/Wikidata")** or discuss these issues on the **[talk page](https://en.wikipedia.org/wiki/Talk:Wikidata "Talk:Wikidata")**. _( [Learn how and when to remove these messages](https://en.wikipedia.org/wiki/Help:Maintenance_template_removal "Help:Maintenance template removal"))_

|     |     |
| --- | --- |
| [![icon](https://upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/120px-Question_book-new.svg.png)](https://en.wikipedia.org/wiki/File:Question_book-new.svg) | This article **relies excessively on [references](https://en.wikipedia.org/wiki/Wikipedia:Verifiability "Wikipedia:Verifiability") to [primary sources](https://en.wikipedia.org/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources "Wikipedia:No original research")**. Please improve this article by adding [secondary or tertiary sources](https://en.wikipedia.org/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources "Wikipedia:No original research"). <br>_Find sources:_ ["Wikidata"](https://www.google.com/search?as_eq=wikipedia&q=%22Wikidata%22)– [news](https://www.google.com/search?tbm=nws&q=%22Wikidata%22+-wikipedia&tbs=ar:1) **·** [newspapers](https://www.google.com/search?&q=%22Wikidata%22&tbs=bkt:s&tbm=bks) **·** [books](https://www.google.com/search?tbs=bks:1&q=%22Wikidata%22+-wikipedia) **·** [scholar](https://scholar.google.com/scholar?q=%22Wikidata%22) **·** [JSTOR](https://www.jstor.org/action/doBasicSearch?Query=%22Wikidata%22&acc=on&wc=on)_(December 2020)__([Learn how and when to remove this message](https://en.wikipedia.org/wiki/Help:Maintenance_template_removal "Help:Maintenance template removal"))_ |

|     |     |
| --- | --- |
| ![](https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/120px-Ambox_current_red_Americas.svg.png) | Parts of this article (those related to Screenshots; and more) need to be **updated**. Please help update this article to reflect recent events or newly available information._(June 2025)_ |

_([Learn how and when to remove this message](https://en.wikipedia.org/wiki/Help:Maintenance_template_removal "Help:Maintenance template removal"))_ |

| [![Logo of Wikidata, a bar code with red, green, and blue stripes](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Wikidata-logo-en.svg/500px-Wikidata-logo-en.svg.png)](https://en.wikipedia.org/wiki/File:Wikidata-logo-en.svg) |
| Screenshot<br>[![](https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Wikidata_main_page_scre

... (truncated, 75 KB total)
Resource ID: e0975f5f1abf3a39 | Stable ID: MzJlZjk3ZW