Elon Musk's startup xAI apologized Saturday for offensive posts published by its artificial intelligence assistant Grok this week, blaming them on a software update meant to make it function more like a human.

AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.”

Elon Musk has launched xAI’s Grok 4—calling it the “world’s smartest AI” and claiming it can ace Ph.D.-level exams and outpace rivals such as Google’s Gemini and OpenAI’s o3 on tough benchmarks

The unusual behavior of Grok 4, the AI model that Musk's company xAI released late Wednesday, has surprised some experts.

The latest iteration of Elon Musk's artificial intelligence chatbot, Grok 4, is drawing attention for an unusual feature: before answering some questions, it checks what Musk himself has said on the topic.

In the ever-expanding universe of artificial intelligence, two major contenders have emerged in 2025, sparking debates among tech enthusiasts, creators, and curious minds alike. ChatGPT by OpenAI and Grok 4 by xAI.