A portion of a huge industrial tunnel under construction in Los Angeles collapsed Wednesday and up to 15 workers may have been trapped, the Los Angeles Fire Department said.

Elon Musk’s AI chatbot Grok, designed to be ‘unfiltered’, has sparked global backlash over some of its responses.

Yaccarino’s departure comes as X integrates more closely with Musk’s AI startup, xAI and its Grok chatbot, which has come ...

Grok 4 has been announced as Elon Musk's AI company seeks to take on OpenAI and preempt the launch of the GPT-5 model.

Trained on xAI’s Colossus supercomputer, Grok 4 is positioned to outperform existing models such as GPT-3 and Gemini 2.5 Pro across key benchmarks.

The latest generation of Grok models are xAI’s answer to the frontier models from OpenAI, Google, and Anthropic.

Elon Musk’s xAI launched Grok 4, the latest generation of its AI models, intensifying its competition with rivals OpenAI, Google and Anthropic. In an hourlong livestream Wednesday night, Musk said ...

Correspondent Ronny Chieng clowned the billionaire after his artificial intelligence chatbot went "full Nazi" on him.

Elon Musk’s xAI has launched its latest AI model, Grok 4, alongside a $300 per month “SuperGrok Heavy” plan. Musk claims Grok ...