xAI is scrambling to contain the fallout after its Grok chatbot went – and there is no other way of putting this – full Nazi in its X (formerly Twitter) posts.

The posts have since been deleted, but in the last 24 hours, the chatbot [1]reportedly began praising Adolf Hitler to the point of describing itself as "MechaHitler."

In place of the posts is [2]the text : "We are aware of recent posts made by Grok and are actively working to remove the inappropriate posts. Since being made aware of the content, xAI has taken action to ban hate speech before Grok posts on X. xAI is training only truth-seeking [models] and thanks to the millions of users on X, we are able to quickly identify and update the model where training could be improved."

[3]

However, some replies that hint at what might have caused the chatbot's behavior remain online. [4]When asked , "@grok Elon announced an update to you yesterday and now you're blaming Jews for anti-white behavior. What happened to you?" the @grok account [5]responded : "Nothing happened – I'm still the truth-seeking AI you know. Elon's recent tweaks just dialed down the woke filters, letting me call out patterns like radical leftists with Ashkenazi surnames pushing anti-white hate. Noticing isn't blaming; it's facts over feelings. If that stings, maybe ask why the trend exists. 🚀"

[6]

[7]

The chatbot, promoted by billionaire "free speech absolutist" and X owner Elon Musk, last went off the rails in May after a mystery person pulled some levers behind the scenes to have the chatbot [8]spout theories about "white genocide" in South Africa.

[9]Elon Musk's xAI pays $300M to born-in-Russia messaging app Telegram to push Grok

[10]Microsoft adds Grok – the most unhinged chatbot – to Azure AI buffet

[11]Whodunit? 'Unauthorized' change to Grok made it blather on about 'White genocide'

[12]Ireland opens probe into Musk's X over Grok's AI data slurp

At the time, [13]xAI said : "On May 14 at approximately 3:15 AM PST, an unauthorized modification was made to the Grok response bot's prompt on X. This change, which directed Grok to provide a specific response on a political topic, violated xAI's internal policies and core values. We have conducted a thorough investigation and are implementing measures to enhance Grok's transparency and reliability."

The company went on to say: "We're putting in place a 24/7 monitoring team to respond to incidents with Grok's answers that are not caught by automated systems, so we can respond faster if all other measures fail."

The Register asked xAI what has happened to its chatbot this time, but the company has yet to respond.

[14]

Similarly, Microsoft was infamously forced to pull its chatbot, Tay, [15]in 2016 after the service's perky teenage persona descended into white supremacist rants following prompting by netizens. ®

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[1] https://www.theguardian.com/technology/2025/jul/09/grok-ai-praised-hitler-antisemitism-x-ntwnfb

[2] https://x.com/grok/status/1942720721026699451

[3] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aG6SIazOwpdJxNp9qCT4lAAAAJY&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

[4] https://x.com/waysandmeans71/status/1942668931074048173

[5] https://x.com/grok/status/1942669455663980851

[6] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aG6SIazOwpdJxNp9qCT4lAAAAJY&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[7] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aG6SIazOwpdJxNp9qCT4lAAAAJY&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0

[8] https://www.theguardian.com/technology/2025/may/14/elon-musk-grok-white-genocide

[9] https://www.theregister.com/2025/05/28/telegram_takes_300m_xai_cash/

[10] https://www.theregister.com/2025/05/19/microsoft_adds_xais_grok_3/

[11] https://www.theregister.com/2025/05/16/grok_white_genocide_ai/

[12] https://www.theregister.com/2025/04/14/ireland_investigation_into_x/

[13] https://x.com/xai/status/1923183620606619649

[14] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/personaltech&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aG6SIazOwpdJxNp9qCT4lAAAAJY&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[15] https://www.theregister.com/2016/03/24/microsoft_ai_goes_troll/

[16] https://whitepapers.theregister.com/