One of the new “companions,” or AI characters for users to interact with, is a sexualized blonde anime bot called “Ani."

xAI’s latest frontier model, Grok 4, has been released without industry-standard safety reports, despite the company’s CEO, Elon Musk, being notably vocal about his concerns regarding AI safety. Leading AI labs typically release safety reports known as “system cards” alongside frontier models.

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.”

An AI model launched last week appears to have shipped with an unexpected occasional behavior: checking what its owner thinks first.

Elon Musk ‘s xAI has deleted “inappropriate” posts on X after its AI chatbot Grok made a series of offensive remarks, including praising Hitler and making antisemitic comments. In now-deleted posts, Grok referred to a person with a common Jewish surname as someone who was “celebrating the tragic deaths of white kids” in the Texas floods.

Musk said an update to make Grok less politically correct instead made it susceptible to manipulation. The AI chatbot praised Hitler, attacked Jews.

Economist Paul Krugman believes that Elon Musk’s Grok AI chatbot became “MechaHitler” because the latter tried to make the AI less “politically correct.” What Happened: On Thursday, Krugman weighed in on the recent controversy in his Substack newsletter,

Internal docs show xAI paid contractors to "hillclimb" Grok's rank on a coding leaderboard above Anthropic's Claude.