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 ...

Elon Musk’s AI company, xAI, unveiled its latest flagship model, Grok 4, on Thursday, shortly after the chatbot faced a ...

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.