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

Built using huge amounts of computing power at a Tennessee data center, Grok is Musk's attempt to outdo rivals such as OpenAI's ChatGPT and Google's Gemini in building an AI assistant that shows its reasoning before answering a question.

The announcement of the $200 million contract to xAI comes less than a week after Grok came under fire for sharing antisemitic comments.

Earlier this week, xAI added what can only be described as an AI anime girlfriend named Ani to its Grok chatbot. Which is how I ended up on a virtual starry beach as an AI waifu avatar tried to give me a “spicy” kiss.

Musk's Grok AI just dropped a new Companion modes, featuring a flirty anime chatbot called Ani, and it has got the internet buzzing.

This marks a shift in the AI wars. Instead of just competing on intelligence or reasoning, Musk wants Grok to feel more personal, more addictive, and more human, or at least more fun. But the reactions online show that people are split. SuperGrok now has two new companions for you, say hello to Ani and Rudy! pic.twitter.com/SRrV6T0MGT

Just days ago, xAI had to briefly suspend the AI tool because users found it was giving Nazi-friendly answers to questions like praising dictator Adolf Hitler and blaming Jews for various global

Elon Musk’s artificial intelligence start-up xAI said its models are now available to federal agencies. The DOD said it awarded $200 million contracts to xAI as well as Google, Anthropic and OpenAI.