Overview
- X’s new Custom Timelines, which launched Wednesday for Premium users on iOS, let people pin topic feeds directly to the home tab with Android access promised soon.
- Grok, X’s in-house AI, reads every post and assigns topic labels rather than relying on keywords or hashtags, with more than 75 categories available at launch.
- Users can pin up to 10 topics and reorder them on the home screen, while a Snooze Topics control lets Premium users on iOS and the web mute subjects like politics for 24 hours.
- Hands-on tests found an ad in the second slot of each pinned feed, suggesting X is opening new ad inventory inside these AI-curated timelines.
- X will shut Communities on May 30 after reporting less than 0.4% usage and a heavy share of spam reports, shifting its topic organization toward Grok-labeled feeds.