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Wikimedia Foundation

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      OpenAI “rogue” agent activities found on Wikimedia projects

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Technology

We keep Wikimedia projects fast, reliable, and available to all.

WikiDemocracy Event - May 2017

From hosting Wikipedia to creating edit-checking artificial intelligence (AI), we design and build the open-source technology that powers Wikimedia projects. Community volunteers and Foundation technologists collaborate on MediaWiki, the platform that makes sharing free knowledge possible.

Hosting the world’s knowledge

Wikipedia is one of the top most-visited websites in the world, accessed by 1.5 billion unique devices every month. Our infrastructure keeps it online.

Making Wikipedia easier to use

Through technical and design improvements to Wikipedia’s desktop and more, we make the site easier to use and more welcoming for readers and contributors alike.

Assisting human collaboration with machine learning

Anyone can edit Wikipedia, and it can be challenging to maintain quality control. That is why we made ORES, an artificial intelligence service that automatically identifies potentially problematic content as soon as it appears, advising editors if changes are needed.

Helping NASA

NASA’s internal wiki for collaboration and documentation is built on MediaWiki, just like Wikipedia. We create MediaWiki—open-source wiki software that is free and available for anyone.

Mentoring new developers

To help build a more diverse and inclusive technical community, the Wikimedia Foundation funds, supports, and mentors new developers and underrepresented groups in tech.

Growing a volunteer developer community

Over half of the commits made to our codebase are pushed by volunteers. We actively support a thriving volunteer technology community, with grants, events, and an open collaboration tool.

1.5+ billion

unique devices access Wikimedia sites every month

67+ million

articles across over 300 languages on Wikipedia

See what we have been up to

OpenAI “rogue” agent activities found on Wikimedia projects

Technology

The Wikimedia Foundation found “rogue” OpenAI agents editing wikis, trying to exploit a hosted tool, and driving heavy traffic to Wikimedia projects.

5 October 2026 By Selena Deckelmann
Read more

The cost of ‘free’: How Wikimedia Enterprise protects Wikipedia in the AI era

Technology

Five years in, Wikimedia Enterprise is one of the ways we get AI and big tech to stop putting strain on the free and open web.

16 July 2026 By Lane Becker
Read more

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Dive deeper into Wikimedia projects

MediaWiki

Originally created for use on Wikipedia, MediaWiki is free and open-source wiki software written in PHP.

ORES

The web service and API that provides machine learning as a service to flag bad edits and vandalism on Wikimedia projects.

Wikipedia for Android

Wikipedia at your fingertips on Android. Set your app to night reading mode or save articles to read offline.

Wikipedia for iOS

Wikipedia at your fingertips on iOS. Set your app to night reading mode or save articles to read offline.

APIs

Our API provides straightforward access to Wikimedia content and data, in machine-readable formats.

Wikistats

Wikistats is a public dashboard featuring data about the reach and impact of Wikimedia projects.

Wikimedia Enterprise

For organizations that reuse Wikimedia content: Wikimedia Enterprise is a commercial product that meets a range of high volume content reuse needs, providing streamlined, on-demand access to Wikimedia APIs with standard Service Level Agreements.

Photo credits

Close-up of Lady Justice statue holding scales, symbolizing justice and fairness File provided by Wikimedia Commons

DP Singh Bhullar

CC BY-SA 4.0

SwarmRobot_org File provided by Wikimedia Commons

Serg

GNU General Public License

Wikimedia_UNGA_IMG_3281

Lucia Liss

Roger B. Chaffee at a console in the Mission Control Center, Houston, during the Gemini-Titan 3 flight File provided by Wikimedia Commons

NASA

Public domain

WikiDemocracy Event - May 2017

WikiDemocracy Event - May 2017 File provided by Wikimedia Commons

ZMcCune (WMF)

CC BY-SA 4.0

Staff with Wikimedia Foundation servers

Papaul Tshibamba-4 File provided by Wikimedia Commons

Victor Grigas

CC BY-SA 3.0

Revscore illustration

Revscore WP File provided by Wikimedia Commons

Mun May Tee-Galloway

CC BY-SA 4.0

Messier 101 galaxy

M101 hires STScI-PRC2006-10a File provided by Wikimedia Commons

ESA/Hubble

CC BY 4.0

Wikimedia Hackathon 2013

Wikimedia Hackathon 2013 - Flickr - Sebastiaan ter Burg (9) File provided by Wikimedia Commons

Sebastiaan ter Burg

CC BY 2.0

Attendees of the Wikimedia Hackathon 2019

Wikimedia Hackathon Prague 2019 - 2019-05-18 - Group Picture File provided by Wikimedia Commons

Pierre-Selim Huard

CC BY 4.0

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1 Nov, 2026
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1 Nov, 2026

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