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

AI, made a splash with the release of Grok 4, and the announcement of a new ultra-premium subscription tier, SuperGrok Heavy.

Elon Musk's plans to ship an overseas power plant to Memphis for an xAI supercomputer raise both interest and environmental concerns.

AI's latest Grok 4 large language model appears to search for owner Elon Musk's opinions before answering sensitive questions about

Billionaire Tesla owner Elon Musk said Thursday that Tesla vehicles will soon feature the artificial intelligence chatbot Grok, developed by Musk’s AI startup xAI.In a message posted to his social media platform,

At the launch of Grok-4, the xAI presenters prompted the chatbot to predict the World Series. After 4.5 minutes, it had an answer.

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'.

NEW YORK (AP) — X CEO Linda Yaccarino said she’s stepping down after two years running Elon Musk’s social media platform.