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Java Tech Enthusiast
Java Tech Enthusiast
Jan 21, 2026 · Artificial Intelligence

Inside X’s Open‑Source Recommendation Engine: How the Grok‑Powered Transformer Works

X platform has open‑sourced its new "For You" recommendation system, revealing a Grok‑based Transformer architecture, detailed module breakdown, seven‑step content ranking pipeline, and the strategic motivations behind the unprecedented move toward algorithmic transparency and community‑driven improvement.

TransformerX Platformmachine learning
0 likes · 12 min read
Inside X’s Open‑Source Recommendation Engine: How the Grok‑Powered Transformer Works
PaperAgent
PaperAgent
Jan 20, 2026 · Artificial Intelligence

How X’s Open‑Source “For You” Recommendation Engine Works

X (formerly Twitter) has open‑sourced its “For You” recommendation algorithm, revealing a Grok‑based Transformer that merges on‑platform and off‑platform content, removes manual features, and scores posts through a multi‑stage pipeline with candidate sourcing, hydration, filtering, scoring, and selection.

GrokOpen SourceTransformer
0 likes · 5 min read
How X’s Open‑Source “For You” Recommendation Engine Works