X deployed Grok to automatically generate short summaries of trending topics and news stories, displayed in the Explore section of the platform. This feature, called Stories on X, launched in April–May 2024 for X Premium subscribers.

Grok analyzes large volumes of public X posts related to trending topics and produces concise written summaries, which appear at the top of the For You tab in the Explore section. According to Wikipedia's documentation of the Grok chatbot, on April 4, 2024, the Explore page update included summaries of breaking news stories written by Grok, described as a task previously assigned to a human curation team. X's engineering team confirmed the feature via an official announcement on X in May 2024. Summaries carry a disclaimer that Grok can make mistakes.