Open Source Tool Simulates X Ranking Algorithm

TheOnlyVibemaster · reddit · 2026-07-15

The author developed an open-source tool called **XViral** that uses local LLM orchestration to simulate X's leaked 2026 production ranking algorithm, scoring draft posts locally. Implementation details mentioned include reproducing the multi-head scoring environment disclosed in the text. It uses a vision-language judge to compute signals like `slop_score` and `quality_score`, and simulates 19 different engagement prediction heads, ultimately aggregating them into a recommendation score. The author notes that some prompt parameters were missing from X's public disclosure, so they used a local LLM loop to approximate those black-box judge layers. The project is open-sourced under a permissive license. Users are encouraged to run drafts locally, inspect the scoring formulas, or port this judge-emulation approach to other platforms.

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