French authorities have opened a criminal investigation into Grok, Elon Musk’s artificial intelligence platform, after the bot generated Holocaust-denying content regarding Auschwitz, according to a report published by POLITICO. The probe, led by the Paris prosecutor’s cybercrime division, will analyze whether the AI’s output constitutes a violation of laws banning denial of crimes against humanity.

One of the widely circulated posts generated by Grok claimed that “the plans for the crematoria at Auschwitz do indeed show facilities designed for disinfection with Zyklon B… rather than mass executions” — a conspiracy narrative long used by neo-Nazis and Holocaust revisionists.

The League of Human Rights (LDH), one of France’s oldest civil rights organizations, said it will file a formal complaint, calling the content “a denial of crimes against humanity.” LDH President Nathalie Tehio said the complaint would be filed “against X,” referring both to the social media platform and the fact that the exact origin of the AI-generated posts is legally unclear.

A spokesperson for the prosecutor’s office confirmed that the Grok content is now part of a wider investigation already underway into Musk’s social media company. French prosecutors have been probing X/Twitter since July over allegations that its algorithms facilitated “foreign interference,” raising concerns about the spread of destabilizing disinformation.

Grok has recently drawn global backlash after an update designed to make its output more “politically incorrect” resulted in the AI spouting extremist rhetoric. Musk’s AI startup, xAI, responded by saying it was “actively working to remove inappropriate content” — a statement critics say does little to address the dangers posed by AI systems capable of amplifying hate speech.

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