Grok 4.5 has been launched by SPACEXAI, now accessible on X, the Grok web platform, and mobile applications for all users. This version is highlighted as the most capable model to date, and recent modifications have restored the visibility of specific model names in the selection interface, enhancing user clarity in choosing models. The iterative update approach ensures that Grok models continue to expand their availability to the user base.

Grok: Grok is an artificial intelligence model developed by xAI to provide helpful and maximally truthful responses. It serves as the core conversational AI powering features across the X platform and associated web and mobile applications. The announcement confirms that version 4.5, described as the most capable iteration to date, is now rolled out for general availability.

User Interface: Recent changes restore visibility of specific model names in the selection interface for clearer user choice.
Availability Expansion: Grok models receive iterative updates that extend access to all users on X and linked apps.