X, previously known as Twitter, introduced 'Stories on X', a premium feature using AI to summarize trending posts.

The AI, named Grok, creates summaries available on iOS and the web, with future plans to expand to Android.

Summaries by Grok include news and platform discussions, requiring users to fact-check for potential inaccuracies.

Premium subscription for 'Stories on X' is priced at $8 per month, highlighting a monetization effort.

The feature's launch indicates X's focus on innovation and user experience, amidst concerns over AI reliability.