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

Elon Musk released the newest artificial intelligence model from his company xAI on Wednesday night. In an hour-long public reveal session, he called the model, Grok 4, “the smartest AI in the world” and claimed it was capable of getting perfect SAT scores and near-perfect GRE results in every subject,

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.”

According to TechCrunch, the behavior is not isolated. The outlet replicated several prompts in which Grok 4 claimed it was “searching for Elon Musk views on US immigration” or referenced his stance in its chain-of-thought reasoning.

Grok AI will be available in Tesla vehicles next week "at the latest", the EV maker's CEO, Elon Musk, said in a post on X on Thursday.Musk's AI startup xAI launched Grok 4, its latest flagship AI model,

The tech billionaire unveiled its latest version, Grok 4, which he claims is "smarter than almost all graduate students, in all disciplines, simultaneously."

Elon Musk’s artificial intelligence company is taking down antisemitic comments and other “inappropriate posts” made by its Grok chatbot, including some praising Adolf Hitler

The xAI founder said the very notion humans actually once managed an economy will seem very quaint in the future, like “cavemen throwing sticks into a fire.”

Elon Musk ripped into his own newly improved artificial intelligence chatbot Grok after it declared that the biggest threat facing Western civilization was “misinformation.” The billionaire Tesla and xAI chief had announced a new version of Grok on Wednesday night,