X For You Algorithm

Learn how the latest open-source X For You recommendation system assembles, retrieves, ranks, filters, and blends feed items. This course is for technically curious learners who want a practical architecture map grounded in the May 2026 xai-org/x-algorithm source.

4 sections ยท 12 lessons

Course outline

Feed Assembly

  1. Request to Ranked Feed
  2. Pipeline Components
  3. Blended Feed Items
  4. Place the Feed Change

Candidate Supply

  1. Thunder In-Network Store
  2. Phoenix Source Families
  3. Source Failures and Fallbacks
  4. Diagnose a Missing Post

Phoenix Ranking

  1. Two-Tower Retrieval
  2. Candidate-Isolated Ranking
  3. Multi-Action Scores
  4. Trace Retrieval to Score

Safety and Release

  1. Hydration and Filters
  2. Grox Content Understanding
  3. May 2026 Release Changes
  4. Judge a Release Claim

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