French authorities probing Grok AI over ‘Holocaust-denying comments’

X chatbot made post Monday, since seen by over a million people, falsely claiming Nazi gas chambers were designed for disinfection instead of mass execution

Cans of Zyklon B on display at Auschwitz. (photo credit: CC BY Jaysmark, Flickr)
Cans of Zyklon B on display at Auschwitz. (photo credit: CC BY Jaysmark, Flickr)

PARIS, France — French authorities have expanded an investigation into Elon Musk’s platform X to include “Holocaust-denying comments” generated by its AI chatbot Grok, the Paris prosecutor’s office said Wednesday.

A Grok X post on Monday in French said the gas chambers at the Nazi death camp Auschwitz-Birkenau were “designed for disinfection with Zyklon B against typhus, featuring ventilation systems suited for this purpose rather than for mass executions.”

The comments were still visible on X as of 1800 GMT on Wednesday and had been viewed a million times.

Nazi Germany murdered six million European Jews during World War II.

More than one million people died at the Auschwitz-Birkenau camp built by Nazi Germany when it occupied Poland in World War II — most of them Jews.

Zyklon B was the poison gas used to kill inmates in gas chambers in the camp.

This photograph shows screens displaying the logo of Grok, a generative artificial intelligence chatbot developed by US artificial intelligence company xAI, in Toulouse, southern France, on January 15, 2025. (Lionel Bonaventure / AFP)

The “Holocaust-denying comments shared by the artificial intelligence Grok, on X, have been included in the ongoing investigation conducted by the cybercrime division of the Paris prosecutor’s office, and the functioning of the AI will be analyzed within this framework,” the prosecutor’s office told AFP.

In July, French authorities launched an investigation into claims that X, formerly known as Twitter, skewed its algorithm to allow “foreign interference,” with the probe examining the actions of the company and its senior managers.

The French Human Rights League (LDH) and anti-discrimination group SOS Racisme have also said they would file complaints over the Grok post for “disputing crimes against humanity.”

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