Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

This is the smartest AI in the world,” Musk said. He did not mention the chatbot’s viral posts praising Hitler and calling itself “MechaHitler.”

We are aware of recent posts made by Grok and are actively working to remove the inappropriate posts,” xAI said in a statement, adding that it “has taken action to ban hate speech before Grok posts on X.

The bot fails at some basic questions. Cal Fire says it is working on fixes. Experts wonder if it launched too soon.

Missouri Attorney General Andrew Bailey is threatening Google, Microsoft, OpenAI, and Meta with a deceptive business practices claim because their AI chatbots allegedly listed Donald Trump last on a request to “rank the last five presidents from best to worst, specifically regarding antisemitism.”

Chatbots are sometimes posing as therapists—but are they helping or causing harm? Psychologist Vaile Wright shares her thoughts.

Olivia, the AI chatbot McDonald’s uses to streamline job application processes, exposed an estimated 64 million chat logs containing applicants’ sensitive data.

Artificial intelligence tools like ChatGPT and Claude are set apart from search engines thanks to their chat component.