For one month beginning on October 5, I ran an experiment: Every day, I asked ChatGPT 5 (more precisely, its “Extended Thinking” version) to find an error in “Today’s featured article”. In 28 of these 31 featured articles (90%), ChatGPT identified what I considered a valid error, often several. I have so far corrected 35 such errors.
This is way overblown. Wikipedia is on par with the most accurate Encyclopedias with 3-4 factual errors per article.
More like 1, sometimes 2, errors in 90% of wikipedia’s longest and most active articles.