X (Twitter) Open-Sources Its Real-Time Recommendation Algorithm

20.01.2026

X (formerly Twitter) has released the production version of its recommendation algorithm as open-source software. This is the current implementation actively powering the platform's "For You" feed in real-time.

The release provides unprecedented insight into how X's content recommendation system operates, offering developers and researchers the opportunity to:

• Understand the mechanics behind personalized content delivery on one of the world's largest social platforms
• Leverage proven algorithmic techniques for building custom recommendation services
• Study production-grade machine learning systems at scale

The codebase is available for examination and adaptation, making it a valuable resource for teams developing their own recommendation engines or studying modern content ranking methodologies.

Source: https://github.com/xai-org/x-algorithm

Tags: machine learning social media Twitter open-source recommendation-algorithm

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