Elon Musk introduced Grok 4 last night, calling it the ‘smartest AI in the world’ — what businesses need to know

After days of controversy surrounding a flurry of antisemitic responses made recently by his Grok AI-powered chatbot on his social network X (formerly Twitter), a seemingly unrepentant and unbothered Elon Musk launched the latest version of his AI model family, Grok 4, during an event livestreamed on X last night, calling it the “the smartest AI in the world.”

As Musk posted on X: “Grok 4 is the first time, in my experience, that an AI has been able to solve difficult, real-world engineering questions where the answers cannot be found anywhere on the Internet or in books. And it will get much better.”

The new release actually includes two distinct models: Grok 4, a single-agent reasoning model, and Grok 4 Heavy, a multi-agent system designed to solve complex problems through internal collaboration and synthesis.

Both models are optimized for reasoning tasks and come with native tool integration, enabling capabilities ...