Grok, an AI tool, has received significant updates that enhance its functionality. Users can now include links in their messages to Grok, allowing it to understand and explain content from those links. Additionally, Grok has been upgraded with vision capabilities, enabling it to interpret images within posts. These advancements were highlighted in various announcements, with users expressing excitement about the new features. Notably, Grok can now also explain memes, further expanding its interactive capabilities.