Ethan Mollick says recent AI models outperform PhD experts at fact-checking

Ethan Mollick, a Wharton professor who writes about AI, posted on X on November 7, 2026 that recent AI models outperform human experts, including PhD specialists, at finding facts and checking claims.

He also says there is too much concern about verifying AI output for factual errors in everyday work.

The post gives no named benchmark, study, models, or data source for the comparison. The claim comes from Mollick's post alone.