On January 20, 2026, Musk made a groundbreaking announcement: his social media platform, X, has officially open-sourced its recommendation algorithm. The algorithm's code is now accessible to the public on GitHub. Built upon the same Transformer architecture as the Grok model developed by xAI, this algorithm eliminates all manually crafted features and rules. Instead, it relies entirely on AI models to handle content filtering, scoring, and ranking tasks. The recommendation system ingeniously blends content from sources users follow with content they might not follow but could find engaging. It employs AI models to forecast the likelihood of user actions such as likes, replies, and shares, subsequently generating a holistic ranking. The platform has pledged to update the code every four weeks, a move aimed at bolstering algorithm transparency and fostering ongoing optimization.