X Algorithm Insights

Verified weights from X's open-source recommendation algorithm

Algorithm Status

Based on twitter/the-algorithm open-source release

Last synced:

Main Repo ML Repo

Engagement Weights (Heavy Ranker)

These weights determine how much each engagement type contributes to a tweet's ranking score.

Content Multipliers

Key Insights

Algorithm Changelog

The Math Behind Rankings

score = Σ (weight_i × probability_i) × multipliers

Each tweet is scored by predicting the probability of each engagement type (reply, like, etc.) and multiplying by the corresponding weight. Content multipliers (media, Blue verification) are then applied to the final score. Higher scores = higher ranking in the For You feed.