X updates timeline recommendations with new AI ranking model
Photo: Crypto Briefing
Elon Musk says a new ranking model predicts time spent on posts better, while a retrieval model surfaces posts users read to the end X, the platform formerly known as Twitter, has once again tinkered with the machinery deciding what lands in your feed. On October 20, 2026, Elon Musk announced two updates to the timeline recommendation system. One is a new AI/SI ranking model built to better predict how long users will spend on content. The other is a retrieval model that favors posts people actually read to the end. Musk paired the news with a bold engagement claim.
Source: Crypto Briefing
