The launch of Grok 4.3 represents a calculated bet by xAI that the market wants specialized brilliance and extreme cost efficiency over a perfectly balanced generalist.

We take a deep dive into the advantages and controversies of Grok, and what sets it apart from other generative AI chatbots. Barbara is a tech writer specializing in AI and emerging technologies. With ...

xAI has launched Grok 4.20 live in Beta. Estimated Arena (LMArena) Elo for Grok 4.20: ~1505–1535 provisional (Grok 4.20 analysis). Reasoning: Grok 4.1 Thinking is already at 1483. The multi-agent ...

Elon Musk's xAI has signed up several Wall Street firms that have ties to his businesses to test its Grok chatbot as it seeks to drive revenue growth ahead of parent company SpaceX's (SPACE) initial ...

With all the AI news coming out each week, some of the more significant advancements can be hard to track. Grok 4 Fast is streamlined version of xAI's flagship Grok 4 model released back in July 2025.

xAI made people’s conversations with its chatbot public and searchable on Google without warning — including a detailed plan for the assassination of Elon Musk and explicit instructions for making ...