As of December 2025, there are over 66 million articles across all languages on Wikipedia. Around 7 million articles are in English.

Machine translators have made it easier than ever to create error-plagued Wikipedia articles in obscure languages. What happens when AI models get trained on junk pages? When Kenneth Wehr started ...

Can the online encyclopedia help teach A.I. chatbots to get their facts right — without destroying itself in the process? Credit...Illustration by Erik Carter Supported by By Jon Gertner In early 2021 ...