Unhinged as Grok may be, it's now open source. xAI's CEO, Elon Musk, posted on X that the company made the older Grok 2.5 model available to the public and will do the same with the upcoming Grok 3.

Grok 4.1: For most of the prompts that I used in this test, Grok would provide more detail than ChatGPT. This wasn’t the case ...

What just happened? Elon Musk's xAI has introduced an agentic coding model aimed at delivering speed and cost efficiency for software development tasks. Called Grok Code Fast 1, the model is built on ...

Elon Musk's xAI launched its chatbot, Grok, in 2023 to compete with bots from OpenAI and Anthropic. Musk has positioned Grok as a "politically incorrect" alternative option to "woke" chatbots. From ...

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.