Grok fact-checks Musk's Hitler claim
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The gist
Grok, the AI assistant on X, fact-checked owner Elon Musk's post calling Hitler a "far left socialist."
A study found Grok 3 wrong on 94% of queries.
Background
Elon Musk owns X, the social platform where Grok, its built-in AI assistant, answers users' questions. Musk posted that Hitler was a "far left socialist. Literally of his party!", and Grok then fact-checked its owner's post, as reported by The Tennessee Holler, an outlet that described Grok as fact-checking its "master." The episode drew notice because Grok is described as neither simply its owner's mouthpiece nor a neutral arbiter — it reflects the data and instructions it sees when it answers — and because fact-checking is where Grok is weakest, with roughly one in six requests to the @grok account being "verify this."
How it unfolded
- recentlyElon Musk posted on X that Hitler was a "far left socialist. Literally of his party!"
- recentlyGrok fact-checked its owner Musk's post, according to The Tennessee Holler.
- Feb 2025Columbia University's Tow Center ran 200 articles from 20 publishers through 8 AI search engines in 1,600 queries; Grok 3 got 94% of queries wrong.
- Mar 2025Asked by outlet Decrypt who spreads the most disinformation on X, Grok named Elon Musk.
- Dec 2025After the Bondi Beach shooting, Grok repeated a fake name for the bystander hero ("Edward Crabtree"; the real name was Ahmed al Ahmed) and called verified footage an "old viral clip."
Who’s saying what
- Caution
- Grok is described as neither its owner's mouthpiece nor a neutral arbiter, reflecting the data and instructions in front of it when it answers.
- Analysts
- Fact-checking is where Grok is weakest, and a Tow Center test found Grok 3 wrong on 94% of 1,600 queries.