X, the social media platform owned by Elon Musk, has begun rolling out a new feature called Custom Timelines, renewing a significant shift in how users discover and interact with content on the platform.
The update allows users to pin up to 75 topics directly to their Home tab, creating multiple dedicated feeds tailored to specific interests such as sports, entertainment, technology, or finance. Each pinned topic functions as its own timeline, offering a more structured alternative to X’s traditional “For You” feed.
At the core of the feature is Grok, the AI system developed by xAI. Grok analyzes posts across the platform, categorizes them by subject, and curates content streams based on a user’s activity and engagement patterns. As users interact with posts through likes, reposts, and replies, the system refines each timeline to better match their preferences over time.
The feature is currently being rolled out as early access to Premium subscribers on iOS devices, with support for Android expected in a future update. There is no confirmed timeline yet for a broader public release, as other latest reports will also be reported by us.
Custom Timelines represents an evolution of existing features like Lists, combining them with AI-driven recommendations and deeper personalization. Instead of relying on a single algorithmic feed, users can now navigate between multiple interest based streams within the same interface.
The update also signals X’s continued investment in AI-powered discovery tools, as the platform looks to increase user engagement and content relevance. In addition to Custom Timelines, X is reportedly testing tools that would allow users to temporarily mute or “snooze” specific topics from appearing in their feeds.