Profile click — a positive ranking signal
Predicted probability the viewer clicks through to your profile. 24× a like in 2023.
Last public weight (2023 heavy ranker): 12.0 LEGACY-2023 — from the frozen twitter/the-algorithm; absent from the 2026 code.
2026 weight: withheld — all current weights live in an
unpublished params module. The weights story →
What actually moves it
Posts that make a stranger ask 'who IS this?' — strong specific claims, unusual expertise — drive profile clicks, which also feed follow_author.
Where it sits in the formula
Phoenix (a Grok-1-architecture transformer, phoenix/README.md)
predicts P(profile_click) per viewer from that viewer’s own
engagement history — not from your post’s running like-count. The prediction is
multiplied by its weight and summed with the other 21 terms, then the
author-diversity decay and
out-of-network multiplier apply.
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