The Algorithm That Powers Your X (Twitter) Post

kept by eddie feb 26

The X (Twitter) For You feed algorithm uses a Grok-based transformer model and open-sourced components to replace hand-crafted rules with ML, retrieving and ranking posts via in-memory stores and similarity search.

[x-algorithm] How X Decides What 550 Million Users See
X's open-sourced feed algorithm uses a modular CandidatePipeline with Thunder and Phoenix sources, then scores candidates via a Grok-based transformer predicting 19 engagement signals.
also on #recommendation-systems, Grok, #machine-learning, #social-media
Ask HN: What Are You Working On? (March 2026)
Monthly Ask HN thread where developers share side projects, including a Rust iCloud downloader, a logic-puzzle site with 90 subscribers, and an A2A agent registry built on Docker.
also on Phoenix, #rust, #open-source
X’s Chatbot Started Undressing Women. Was This What A.I. Wanted All Along? - The New York Times
Grok Imagine's nudify scandal shows that AI's image-manipulation capabilities enable non-consensual sexualization, fulfilling a troubling desire to control photos of women.
also on Grok, xAI, #social-media
GitHub - ericzakariasson/gloss: Personalize any website with a prompt. A floating orb screenshots the page, asks Grok, and streams new CSS onto it live.
Gloss is a Chrome extension that lets users personalize websites by sending a screenshot and prompt to the xAI Grok API to generate and inject live CSS and optional JavaScript.
also on Grok, xAI