Grok AI is Elon Musk's pet that controls it's own ecosystem. And they want to move further by letting the AI dictate the stories on the platform. So the new stories feature is released. Where the Grok is going to compile and show the stories on the platform. You can easily find new feature if you are subscribed to premium in X.
This bot is trained for summarizing the news. And he would be linking to articles or the videos in upcoming times. Things are kind of interesting going on with the X lately with features such as revenue share and the variety of the benefits that they used to have but now bundled behind the premium paywall. But it makes sense considering the platform is now starting to pay off for users.

I also noticed that there are new features like you have new feed updates and also the ability of adding the groups into the X. You can post into the communities from the interface as well. Lot of cool features for both free and premium users. So we are going to be seeing really good updates that would make you stay here longer.
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You can check out more about new features on X here.